WO1999052181A3 - Multi-beam transmit array with low intermodulation - Google Patents

Multi-beam transmit array with low intermodulation Download PDF

Info

Publication number
WO1999052181A3
WO1999052181A3 PCT/US1999/003964 US9903964W WO9952181A3 WO 1999052181 A3 WO1999052181 A3 WO 1999052181A3 US 9903964 W US9903964 W US 9903964W WO 9952181 A3 WO9952181 A3 WO 9952181A3
Authority
WO
WIPO (PCT)
Prior art keywords
outputs
transmitted
signals
beamformers
antenna elements
Prior art date
Application number
PCT/US1999/003964
Other languages
French (fr)
Other versions
WO1999052181A2 (en
Inventor
Paul W Dent
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Priority to AU28747/99A priority Critical patent/AU755338B2/en
Priority to KR1020007011154A priority patent/KR20010042520A/en
Priority to BR9909505-0A priority patent/BR9909505A/en
Priority to EP99909572A priority patent/EP1070367A2/en
Publication of WO1999052181A2 publication Critical patent/WO1999052181A2/en
Publication of WO1999052181A3 publication Critical patent/WO1999052181A3/en
Priority to HK02100171.9A priority patent/HK1038646A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access

Abstract

A transmitter is provided for simultaneously transmitting a plurality of signals in a plurality of directive beams to corresponding destination stations, each destination station located in a separate fan within a service area. The transmitter includes a plurality of beamformers, each beamformer receiving one of the signals to be transmitted to an associated fan, each of the beamformers having a plurality of outputs for each different signal to be transmitted. A plurality of Butler matrices each receive one of the plurality of outputs from the plurality of beamformers for each different signal to be transmitted, each Butler matrix having a plurality of outputs in phased relationship to one another, wherein each of the signals to be transmitted is simultaneously provided across the outputs of each Butler matrix in a phased relationship. An antenna is provided with an aperture within which a two-dimensional array of antenna elements are disposed, wherein equal fractions of adjacent antenna elements are connected to the outputs of each Butler matrix, and wherein each of the plurality of signals are simultaneously transmitted by the entire two-dimensional array of antenna elements. Each of the plurality of beamformers receives steering control signals for steering the direction of each beam within its respective fan.
PCT/US1999/003964 1998-04-06 1999-02-24 Multi-beam transmit array with low intermodulation WO1999052181A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU28747/99A AU755338B2 (en) 1998-04-06 1999-02-24 Multi-beam transmit array with low intermodulation
KR1020007011154A KR20010042520A (en) 1998-04-06 1999-02-24 Multi-beam transmit array with low intermodulation
BR9909505-0A BR9909505A (en) 1998-04-06 1999-02-24 Transmitters for simultaneously transmitting n different signals, 2n different signals, and a plurality of signals, process and communications system to provide communication to a plurality of user terminals, stripper to select data packets from a buffer, and listing processes to select data packets from a temporary memory for directive transmission and to prevent fraudulent or unauthorized use of a communications satellite.
EP99909572A EP1070367A2 (en) 1998-04-06 1999-02-24 Multi-beam transmit array with low intermodulation
HK02100171.9A HK1038646A1 (en) 1998-04-06 2002-01-10 Multi-beam transmit array with low intermodulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/055,490 1998-04-06
US09/055,490 US6377558B1 (en) 1998-04-06 1998-04-06 Multi-signal transmit array with low intermodulation

Publications (2)

Publication Number Publication Date
WO1999052181A2 WO1999052181A2 (en) 1999-10-14
WO1999052181A3 true WO1999052181A3 (en) 2000-04-20

Family

ID=21998193

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/003964 WO1999052181A2 (en) 1998-04-06 1999-02-24 Multi-beam transmit array with low intermodulation

Country Status (9)

Country Link
US (3) US6377558B1 (en)
EP (1) EP1070367A2 (en)
KR (1) KR20010042520A (en)
CN (1) CN1304567A (en)
AU (1) AU755338B2 (en)
BR (1) BR9909505A (en)
HK (1) HK1038646A1 (en)
ID (1) ID27433A (en)
WO (1) WO1999052181A2 (en)

Families Citing this family (241)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4624517B2 (en) * 1999-03-12 2011-02-02 ヤマザキ・ホールディングス，リミテッド・ライアビリティ・カンパニー Base station with active antenna
US6583763B2 (en) * 1999-04-26 2003-06-24 Andrew Corporation Antenna structure and installation
US6621469B2 (en) 1999-04-26 2003-09-16 Andrew Corporation Transmit/receive distributed antenna systems
US20070127553A1 (en) * 1999-08-13 2007-06-07 Viasat, Inc. Code Reuse Multiple Access For Satellite Return Link
US6704543B1 (en) * 1999-09-27 2004-03-09 Ems Technologies, Inc. Multi-beam satellite communications system
US6337659B1 (en) 1999-10-25 2002-01-08 Gamma Nu, Inc. Phased array base station antenna system having distributed low power amplifiers
US6490261B1 (en) * 1999-10-28 2002-12-03 Ericsson Inc. Overlapping slot transmission using phased arrays
US6600921B1 (en) * 2000-02-16 2003-07-29 Hughes Electronics Corporation Dual coverage grid method
US6650869B2 (en) * 2000-04-14 2003-11-18 Hughes Electronics Corporation System and method for managing return channel bandwidth in a two-way satellite system
US6987741B2 (en) * 2000-04-14 2006-01-17 Hughes Electronics Corporation System and method for managing bandwidth in a two-way satellite system
US7187907B2 (en) * 2000-05-09 2007-03-06 Bernard Widrow Simultaneous two-way transmission of information signals in the same frequency band
US6718161B1 (en) * 2000-06-05 2004-04-06 Northrop Grumman Corporation Apparatus and method for reducing latency and buffering associated with multiple access communications systems
US6944140B1 (en) * 2000-06-21 2005-09-13 Northrop Grumman Corporation Beam hopping self addressed packet switched communication system with multiple beam array antenna
US7013137B2 (en) * 2000-07-14 2006-03-14 Comsat Corporation Smaller aperture antenna for multiple spot beam satellites
SE517244C2 (en) * 2000-09-18 2002-05-14 Ericsson Telefon Ab L M Method and device in a telecommunication system
US8188878B2 (en) 2000-11-15 2012-05-29 Federal Law Enforcement Development Services, Inc. LED light communication system
CN100388654C (en) * 2001-05-03 2008-05-14 中兴通讯股份有限公司 Implemnentation of wide-band CDMA base station physical level based on multibeam antenna
BG64659B1 (en) * 2001-06-14 2005-10-31 Skygate International Technology N.V. Method for scanning an antenna array and phase-adjustment device for the materialization thereof
US6801160B2 (en) 2001-08-27 2004-10-05 Herbert Jefferson Henderson Dynamic multi-beam antenna using dielectrically tunable phase shifters
US7369810B2 (en) * 2001-10-05 2008-05-06 The Boeing Company Satellite transponder architecture with integral redundancy and beam selection capabilities
US6801964B1 (en) * 2001-10-25 2004-10-05 Novell, Inc. Methods and systems to fast fill media players
US7006038B2 (en) * 2002-04-05 2006-02-28 The Liberty Corporation System and method for determining optimal broadcast area of an antenna
US6738018B2 (en) * 2002-05-01 2004-05-18 Harris Corporation All digital phased array using space/time cascaded processing
US6674410B1 (en) * 2002-05-15 2004-01-06 The United States Of America As Represented By The Secretary Of The Air Force Six-port junction/directional coupler with 0/90/180/270 ° output phase relationships
US6983174B2 (en) * 2002-09-18 2006-01-03 Andrew Corporation Distributed active transmit and/or receive antenna
US6906681B2 (en) * 2002-09-27 2005-06-14 Andrew Corporation Multicarrier distributed active antenna
US7280848B2 (en) * 2002-09-30 2007-10-09 Andrew Corporation Active array antenna and system for beamforming
EP1570623B1 (en) 2002-12-04 2019-04-17 Certicom Corp. Method and apparatus for encoding security status information
US7151951B2 (en) * 2002-12-23 2006-12-19 Telefonktiebolaget Lm Ericsson (Publ) Using beamforming and closed loop transmit diversity in a multi-beam antenna system
US6972622B2 (en) * 2003-05-12 2005-12-06 Andrew Corporation Optimization of error loops in distributed power amplifiers
US6965279B2 (en) * 2003-07-18 2005-11-15 Ems Technologies, Inc. Double-sided, edge-mounted stripline signal processing modules and modular network
US6831600B1 (en) 2003-08-26 2004-12-14 Lockheed Martin Corporation Intermodulation suppression for transmit active phased array multibeam antennas with shaped beams
US6856284B1 (en) * 2003-10-22 2005-02-15 Itt Manufacturing Enterprises, Inc. Methods and apparatus for multi-beam, multi-signal transmission for active phased array antenna
US7239879B2 (en) * 2003-11-26 2007-07-03 Lucent Technologies Inc. Opportunistic beamforming and scheduling of users in a communication system
US7650379B2 (en) * 2003-12-09 2010-01-19 Viasat, Inc. Method for channel congestion management
WO2005062426A1 (en) * 2003-12-22 2005-07-07 Telefonaktiebolaget Lm Ericsson (Publ) Method and system of communications
GB2419495B (en) * 2004-10-22 2007-03-21 Roke Manor Research Communications method and apparatus
US7551680B2 (en) * 2004-10-28 2009-06-23 Interdigital Technology Corporation Wireless communication method and apparatus for forming, steering and selectively receiving a sufficient number of usable beam paths in both azimuth and elevation
US20060208945A1 (en) * 2005-02-28 2006-09-21 James Kolanek Space / time / polarization adaptive antenna for ESM / ELINT receivers
US7610025B2 (en) 2005-03-29 2009-10-27 Qualcomm Incorporated Antenna array pattern distortion mitigation
US20060251421A1 (en) * 2005-05-09 2006-11-09 Ben Gurion University Of The Negev, Research And Development Authority Improved free space optical bus
US7420508B2 (en) * 2006-02-14 2008-09-02 The Aerospace Corporation Higher-order intermodulation reduction using phase and angle smearing
US8159994B2 (en) * 2006-09-26 2012-04-17 Viasat, Inc. High data rate multiplexing satellite stream to low data rate subscriber terminals
US8230464B2 (en) * 2006-09-26 2012-07-24 Viasat, Inc. DOCSIS MAC chip adapted
US20090286472A1 (en) * 2006-09-26 2009-11-19 Viasat, Inc. Multi-Rate Downstreaming in Multiple Sub-Channel Environment
EP2074715B1 (en) * 2006-10-03 2013-04-24 ViaSat, Inc. Forward satellite link with sub-channels
US7995515B2 (en) * 2006-10-03 2011-08-09 Viasat, Inc. Upstream resource optimization
US9942883B2 (en) * 2006-11-13 2018-04-10 Samsung Electronics Co., Ltd. Method and apparatus for allocating bandwidth of wireless network where both wide-band and narrow-band signals are transmitted, and method and apparatus for transmitting and receiving data on the network
US20080112370A1 (en) * 2006-11-13 2008-05-15 Samsung Electronics Co., Ltd. Method and apparatus for allocating bandwidth of wireless network, and method and apparatus for transmitting and receiving data on the network
US7460077B2 (en) * 2006-12-21 2008-12-02 Raytheon Company Polarization control system and method for an antenna array
EP2127439B1 (en) * 2007-03-22 2019-07-31 Telefonaktiebolaget LM Ericsson (publ) Increasing a sectorization order in a first sector of an antenna array
US7834807B2 (en) * 2007-05-21 2010-11-16 Spatial Digital Systems, Inc. Retro-directive ground-terminal antenna for communication with geostationary satellites in slightly inclined orbits
US9258864B2 (en) 2007-05-24 2016-02-09 Federal Law Enforcement Development Services, Inc. LED light control and management system
US20090003832A1 (en) * 2007-05-24 2009-01-01 Federal Law Enforcement Development Services, Inc. Led light broad band over power line communication system
US9100124B2 (en) 2007-05-24 2015-08-04 Federal Law Enforcement Development Services, Inc. LED Light Fixture
US11265082B2 (en) 2007-05-24 2022-03-01 Federal Law Enforcement Development Services, Inc. LED light control assembly and system
US9294198B2 (en) 2007-05-24 2016-03-22 Federal Law Enforcement Development Services, Inc. Pulsed light communication key
US9414458B2 (en) 2007-05-24 2016-08-09 Federal Law Enforcement Development Services, Inc. LED light control assembly and system
US9455783B2 (en) 2013-05-06 2016-09-27 Federal Law Enforcement Development Services, Inc. Network security and variable pulse wave form with continuous communication
US20090289839A1 (en) * 2007-09-26 2009-11-26 Viasat, Inc Dynamic Sub-Channel Sizing
US8917207B2 (en) * 2007-10-16 2014-12-23 Livetv, Llc Aircraft in-flight entertainment system having a multi-beam phased array antenna and associated methods
US20110169688A1 (en) * 2007-10-18 2011-07-14 Gregory Thane Wyler Apparatus and methods for satelite communication
US20100201566A1 (en) 2007-10-18 2010-08-12 Gregory Thane Wyler System and method for satellite communication
WO2009051592A1 (en) * 2007-10-18 2009-04-23 O3B Networks Limited System and method for satellite communication
US20090201204A1 (en) * 2008-02-05 2009-08-13 Ems Technologies, Inc. Modal beam positioning
US20090231186A1 (en) * 2008-02-06 2009-09-17 Raysat Broadcasting Corp. Compact electronically-steerable mobile satellite antenna system
US8411798B2 (en) 2008-11-05 2013-04-02 Viasat, Inc. Reducing receiver power dissipation
US8988302B2 (en) * 2009-03-23 2015-03-24 Telefonaktiebolaget L M Ericsson (Publ) Antenna arrangements
US8890773B1 (en) 2009-04-01 2014-11-18 Federal Law Enforcement Development Services, Inc. Visible light transceiver glasses
WO2010120756A1 (en) 2009-04-13 2010-10-21 Viasat, Inc. Active phased array architecture
WO2010120790A2 (en) 2009-04-13 2010-10-21 Viasat, Inc. Half-duplex phased array antenna system
US8693970B2 (en) 2009-04-13 2014-04-08 Viasat, Inc. Multi-beam active phased array architecture with independant polarization control
US10516219B2 (en) 2009-04-13 2019-12-24 Viasat, Inc. Multi-beam active phased array architecture with independent polarization control
US20110205120A1 (en) * 2010-02-19 2011-08-25 Src, Inc. Monopulse Beamformer for Electronically Switched Antennas
JP5690200B2 (en) * 2011-04-26 2015-03-25 京セラ株式会社 base station
US9474080B2 (en) 2011-08-17 2016-10-18 CBF Networks, Inc. Full duplex backhaul radio with interference measurement during a blanking interval
US8502733B1 (en) 2012-02-10 2013-08-06 CBF Networks, Inc. Transmit co-channel spectrum sharing
US9713019B2 (en) 2011-08-17 2017-07-18 CBF Networks, Inc. Self organizing backhaul radio
US8238318B1 (en) 2011-08-17 2012-08-07 CBF Networks, Inc. Intelligent backhaul radio
US10716111B2 (en) 2011-08-17 2020-07-14 Skyline Partners Technology Llc Backhaul radio with adaptive beamforming and sample alignment
US10548132B2 (en) * 2011-08-17 2020-01-28 Skyline Partners Technology Llc Radio with antenna array and multiple RF bands
US8422540B1 (en) * 2012-06-21 2013-04-16 CBF Networks, Inc. Intelligent backhaul radio with zero division duplexing
US10051643B2 (en) 2011-08-17 2018-08-14 Skyline Partners Technology Llc Radio with interference measurement during a blanking interval
US8467363B2 (en) 2011-08-17 2013-06-18 CBF Networks, Inc. Intelligent backhaul radio and antenna system
US9049611B2 (en) 2011-08-17 2015-06-02 CBF Networks, Inc. Backhaul radio with extreme interference protection
US10764891B2 (en) 2011-08-17 2020-09-01 Skyline Partners Technology Llc Backhaul radio with advanced error recovery
US10708918B2 (en) 2011-08-17 2020-07-07 Skyline Partners Technology Llc Electronic alignment using signature emissions for backhaul radios
US8761100B2 (en) 2011-10-11 2014-06-24 CBF Networks, Inc. Intelligent backhaul system
US8928542B2 (en) 2011-08-17 2015-01-06 CBF Networks, Inc. Backhaul radio with an aperture-fed antenna assembly
US20220070867A1 (en) * 2011-08-17 2022-03-03 Skyline Partners Technology Llc Backhaul radio with advanced error recovery
US8385305B1 (en) 2012-04-16 2013-02-26 CBF Networks, Inc Hybrid band intelligent backhaul radio
US8982772B2 (en) 2011-08-17 2015-03-17 CBF Networks, Inc. Radio transceiver with improved radar detection
US8989762B1 (en) 2013-12-05 2015-03-24 CBF Networks, Inc. Advanced backhaul services
US8903017B2 (en) * 2012-01-30 2014-12-02 Foster-Miller, Inc. Array amplitude modulation system and method
USD704174S1 (en) 2012-08-14 2014-05-06 CBF Networks, Inc. Intelligent backhaul radio with symmetric wing radome
US9265112B2 (en) 2013-03-13 2016-02-16 Federal Law Enforcement Development Services, Inc. LED light control and management system
EP2785010A1 (en) * 2013-03-28 2014-10-01 Astrium Limited Key distribution in a satellite system
US9999038B2 (en) 2013-05-31 2018-06-12 At&T Intellectual Property I, L.P. Remote distributed antenna system
US9525524B2 (en) 2013-05-31 2016-12-20 At&T Intellectual Property I, L.P. Remote distributed antenna system
RU2541186C1 (en) * 2013-07-29 2015-02-10 Открытое акционерное общество "Научно-исследовательский институт приборостроения имени В.В. Тихомирова" Two-dimensional electronically-controlled beam monopulse phased antenna array
US8897697B1 (en) 2013-11-06 2014-11-25 At&T Intellectual Property I, Lp Millimeter-wave surface-wave communications
US20150198941A1 (en) 2014-01-15 2015-07-16 John C. Pederson Cyber Life Electronic Networking and Commerce Operating Exchange
US9843096B2 (en) * 2014-03-17 2017-12-12 Ubiquiti Networks, Inc. Compact radio frequency lenses
US9768833B2 (en) 2014-09-15 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
US10063280B2 (en) 2014-09-17 2018-08-28 At&T Intellectual Property I, L.P. Monitoring and mitigating conditions in a communication network
US9615269B2 (en) 2014-10-02 2017-04-04 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network
US9685992B2 (en) 2014-10-03 2017-06-20 At&T Intellectual Property I, L.P. Circuit panel network and methods thereof
US9503189B2 (en) 2014-10-10 2016-11-22 At&T Intellectual Property I, L.P. Method and apparatus for arranging communication sessions in a communication system
US9973299B2 (en) 2014-10-14 2018-05-15 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a mode of communication in a communication network
US9577306B2 (en) 2014-10-21 2017-02-21 At&T Intellectual Property I, L.P. Guided-wave transmission device and methods for use therewith
US9627768B2 (en) 2014-10-21 2017-04-18 At&T Intellectual Property I, L.P. Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9780834B2 (en) 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
US9312919B1 (en) 2014-10-21 2016-04-12 At&T Intellectual Property I, Lp Transmission device with impairment compensation and methods for use therewith
US9653770B2 (en) 2014-10-21 2017-05-16 At&T Intellectual Property I, L.P. Guided wave coupler, coupling module and methods for use therewith
US9769020B2 (en) 2014-10-21 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for responding to events affecting communications in a communication network
US9997819B2 (en) 2015-06-09 2018-06-12 At&T Intellectual Property I, L.P. Transmission medium and method for facilitating propagation of electromagnetic waves via a core
US9544006B2 (en) 2014-11-20 2017-01-10 At&T Intellectual Property I, L.P. Transmission device with mode division multiplexing and methods for use therewith
US10243784B2 (en) 2014-11-20 2019-03-26 At&T Intellectual Property I, L.P. System for generating topology information and methods thereof
US10009067B2 (en) 2014-12-04 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for configuring a communication interface
US9954287B2 (en) 2014-11-20 2018-04-24 At&T Intellectual Property I, L.P. Apparatus for converting wireless signals and electromagnetic waves and methods thereof
US9742462B2 (en) 2014-12-04 2017-08-22 At&T Intellectual Property I, L.P. Transmission medium and communication interfaces and methods for use therewith
US9800327B2 (en) 2014-11-20 2017-10-24 At&T Intellectual Property I, L.P. Apparatus for controlling operations of a communication device and methods thereof
US10340573B2 (en) 2016-10-26 2019-07-02 At&T Intellectual Property I, L.P. Launcher with cylindrical coupling device and methods for use therewith
US9461706B1 (en) 2015-07-31 2016-10-04 At&T Intellectual Property I, Lp Method and apparatus for exchanging communication signals
US9876570B2 (en) 2015-02-20 2018-01-23 At&T Intellectual Property I, Lp Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9813145B2 (en) * 2015-03-09 2017-11-07 Orbital Atk, Inc. Communications bandwidth enhancement using orthogonal spatial division multiplexing
US9749013B2 (en) 2015-03-17 2017-08-29 At&T Intellectual Property I, L.P. Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium
FR3034262B1 (en) * 2015-03-23 2018-06-01 Thales COMPACT BUTLER MATRIX, PLANAR BIDIMENSIONAL BEAM FORMER AND FLAT ANTENNA COMPRISING SUCH A BUTLER MATRIX
US9705561B2 (en) 2015-04-24 2017-07-11 At&T Intellectual Property I, L.P. Directional coupling device and methods for use therewith
US10224981B2 (en) 2015-04-24 2019-03-05 At&T Intellectual Property I, Lp Passive electrical coupling device and methods for use therewith
US9793954B2 (en) 2015-04-28 2017-10-17 At&T Intellectual Property I, L.P. Magnetic coupling device and methods for use therewith
US9490869B1 (en) 2015-05-14 2016-11-08 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
US9871282B2 (en) 2015-05-14 2018-01-16 At&T Intellectual Property I, L.P. At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric
US9748626B2 (en) 2015-05-14 2017-08-29 At&T Intellectual Property I, L.P. Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium
US10650940B2 (en) 2015-05-15 2020-05-12 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US9917341B2 (en) 2015-05-27 2018-03-13 At&T Intellectual Property I, L.P. Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves
US9866309B2 (en) 2015-06-03 2018-01-09 At&T Intellectual Property I, Lp Host node device and methods for use therewith
US10812174B2 (en) 2015-06-03 2020-10-20 At&T Intellectual Property I, L.P. Client node device and methods for use therewith
US9912381B2 (en) 2015-06-03 2018-03-06 At&T Intellectual Property I, Lp Network termination and methods for use therewith
US9913139B2 (en) 2015-06-09 2018-03-06 At&T Intellectual Property I, L.P. Signal fingerprinting for authentication of communicating devices
US9820146B2 (en) 2015-06-12 2017-11-14 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9640850B2 (en) 2015-06-25 2017-05-02 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium
US9865911B2 (en) 2015-06-25 2018-01-09 At&T Intellectual Property I, L.P. Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium
US9509415B1 (en) 2015-06-25 2016-11-29 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a fundamental wave mode on a transmission medium
US10205655B2 (en) 2015-07-14 2019-02-12 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array and multiple communication paths
US9882257B2 (en) 2015-07-14 2018-01-30 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9847566B2 (en) 2015-07-14 2017-12-19 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a field of a signal to mitigate interference
US9853342B2 (en) 2015-07-14 2017-12-26 At&T Intellectual Property I, L.P. Dielectric transmission medium connector and methods for use therewith
US9628116B2 (en) 2015-07-14 2017-04-18 At&T Intellectual Property I, L.P. Apparatus and methods for transmitting wireless signals
US10148016B2 (en) 2015-07-14 2018-12-04 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array
US10044409B2 (en) 2015-07-14 2018-08-07 At&T Intellectual Property I, L.P. Transmission medium and methods for use therewith
US10090606B2 (en) 2015-07-15 2018-10-02 At&T Intellectual Property I, L.P. Antenna system with dielectric array and methods for use therewith
CN105024439B (en) * 2015-07-16 2017-04-05 上海肖克利信息科技股份有限公司 A kind of wireless energy storage platform
US9871283B2 (en) 2015-07-23 2018-01-16 At&T Intellectual Property I, Lp Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration
US9912027B2 (en) 2015-07-23 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for exchanging communication signals
US9749053B2 (en) 2015-07-23 2017-08-29 At&T Intellectual Property I, L.P. Node device, repeater and methods for use therewith
US9948333B2 (en) 2015-07-23 2018-04-17 At&T Intellectual Property I, L.P. Method and apparatus for wireless communications to mitigate interference
US9967173B2 (en) 2015-07-31 2018-05-08 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9735833B2 (en) 2015-07-31 2017-08-15 At&T Intellectual Property I, L.P. Method and apparatus for communications management in a neighborhood network
US20170048953A1 (en) 2015-08-11 2017-02-16 Federal Law Enforcement Development Services, Inc. Programmable switch and system
US9904535B2 (en) 2015-09-14 2018-02-27 At&T Intellectual Property I, L.P. Method and apparatus for distributing software
EP3381085A4 (en) 2015-09-18 2019-09-04 Anokiwave, Inc. Laminar phased array
US9769128B2 (en) 2015-09-28 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for encryption of communications over a network
US9729197B2 (en) 2015-10-01 2017-08-08 At&T Intellectual Property I, L.P. Method and apparatus for communicating network management traffic over a network
US9876264B2 (en) 2015-10-02 2018-01-23 At&T Intellectual Property I, Lp Communication system, guided wave switch and methods for use therewith
US10355367B2 (en) 2015-10-16 2019-07-16 At&T Intellectual Property I, L.P. Antenna structure for exchanging wireless signals
EP3427419B1 (en) * 2016-03-11 2022-01-26 Seakr Engineering, Inc. Improving power efficiency in beamforming rf systems
RU2629534C1 (en) * 2016-04-11 2017-08-29 Самсунг Электроникс Ко., Лтд. Phased array antenna with adaptable polarization
US10559880B1 (en) * 2016-04-25 2020-02-11 Avago Technologies International Sales Pte. Limited Multi-layered hybrid beamforming
CN109073750B (en) * 2016-04-29 2023-08-15 R2索尼克有限公司 Multi-sector measurement system and method
US9860075B1 (en) 2016-08-26 2018-01-02 At&T Intellectual Property I, L.P. Method and communication node for broadband distribution
US10439851B2 (en) * 2016-09-20 2019-10-08 Ohio State Innovation Foundation Frequency-independent receiver and beamforming technique
US10374316B2 (en) 2016-10-21 2019-08-06 At&T Intellectual Property I, L.P. System and dielectric antenna with non-uniform dielectric
US10811767B2 (en) 2016-10-21 2020-10-20 At&T Intellectual Property I, L.P. System and dielectric antenna with convex dielectric radome
US9991580B2 (en) 2016-10-21 2018-06-05 At&T Intellectual Property I, L.P. Launcher and coupling system for guided wave mode cancellation
IL266088B (en) * 2016-10-21 2022-07-01 Viasat Inc Ground-based beamformed communications using mutually synchronized spatially multiplexed feeder links
US10312567B2 (en) 2016-10-26 2019-06-04 At&T Intellectual Property I, L.P. Launcher with planar strip antenna and methods for use therewith
US10498044B2 (en) 2016-11-03 2019-12-03 At&T Intellectual Property I, L.P. Apparatus for configuring a surface of an antenna
US10225025B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Method and apparatus for detecting a fault in a communication system
US10224634B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Methods and apparatus for adjusting an operational characteristic of an antenna
US10291334B2 (en) 2016-11-03 2019-05-14 At&T Intellectual Property I, L.P. System for detecting a fault in a communication system
US10566684B2 (en) 2016-11-09 2020-02-18 Space Systems/Loral, Llc Amplifier integrated feed array with modularized feed elements and amplifiers
US10340603B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Antenna system having shielded structural configurations for assembly
US10535928B2 (en) 2016-11-23 2020-01-14 At&T Intellectual Property I, L.P. Antenna system and methods for use therewith
US10178445B2 (en) 2016-11-23 2019-01-08 At&T Intellectual Property I, L.P. Methods, devices, and systems for load balancing between a plurality of waveguides
US10090594B2 (en) 2016-11-23 2018-10-02 At&T Intellectual Property I, L.P. Antenna system having structural configurations for assembly
US10340601B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Multi-antenna system and methods for use therewith
US10305190B2 (en) 2016-12-01 2019-05-28 At&T Intellectual Property I, L.P. Reflecting dielectric antenna system and methods for use therewith
US10361489B2 (en) 2016-12-01 2019-07-23 At&T Intellectual Property I, L.P. Dielectric dish antenna system and methods for use therewith
US10382976B2 (en) 2016-12-06 2019-08-13 At&T Intellectual Property I, L.P. Method and apparatus for managing wireless communications based on communication paths and network device positions
US10439675B2 (en) 2016-12-06 2019-10-08 At&T Intellectual Property I, L.P. Method and apparatus for repeating guided wave communication signals
US10135145B2 (en) 2016-12-06 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave along a transmission medium
US9927517B1 (en) 2016-12-06 2018-03-27 At&T Intellectual Property I, L.P. Apparatus and methods for sensing rainfall
US10637149B2 (en) 2016-12-06 2020-04-28 At&T Intellectual Property I, L.P. Injection molded dielectric antenna and methods for use therewith
US10694379B2 (en) 2016-12-06 2020-06-23 At&T Intellectual Property I, L.P. Waveguide system with device-based authentication and methods for use therewith
US10727599B2 (en) 2016-12-06 2020-07-28 At&T Intellectual Property I, L.P. Launcher with slot antenna and methods for use therewith
US10326494B2 (en) 2016-12-06 2019-06-18 At&T Intellectual Property I, L.P. Apparatus for measurement de-embedding and methods for use therewith
US10819035B2 (en) 2016-12-06 2020-10-27 At&T Intellectual Property I, L.P. Launcher with helical antenna and methods for use therewith
US10020844B2 (en) 2016-12-06 2018-07-10 T&T Intellectual Property I, L.P. Method and apparatus for broadcast communication via guided waves
US10755542B2 (en) 2016-12-06 2020-08-25 At&T Intellectual Property I, L.P. Method and apparatus for surveillance via guided wave communication
US10446936B2 (en) 2016-12-07 2019-10-15 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system and methods for use therewith
US10027397B2 (en) 2016-12-07 2018-07-17 At&T Intellectual Property I, L.P. Distributed antenna system and methods for use therewith
US10243270B2 (en) 2016-12-07 2019-03-26 At&T Intellectual Property I, L.P. Beam adaptive multi-feed dielectric antenna system and methods for use therewith
US10168695B2 (en) 2016-12-07 2019-01-01 At&T Intellectual Property I, L.P. Method and apparatus for controlling an unmanned aircraft
US10139820B2 (en) 2016-12-07 2018-11-27 At&T Intellectual Property I, L.P. Method and apparatus for deploying equipment of a communication system
US10547348B2 (en) 2016-12-07 2020-01-28 At&T Intellectual Property I, L.P. Method and apparatus for switching transmission mediums in a communication system
US9893795B1 (en) 2016-12-07 2018-02-13 At&T Intellectual Property I, Lp Method and repeater for broadband distribution
US10389029B2 (en) 2016-12-07 2019-08-20 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system with core selection and methods for use therewith
US10359749B2 (en) 2016-12-07 2019-07-23 At&T Intellectual Property I, L.P. Method and apparatus for utilities management via guided wave communication
US10916969B2 (en) 2016-12-08 2021-02-09 At&T Intellectual Property I, L.P. Method and apparatus for providing power using an inductive coupling
US10326689B2 (en) 2016-12-08 2019-06-18 At&T Intellectual Property I, L.P. Method and system for providing alternative communication paths
US10601494B2 (en) 2016-12-08 2020-03-24 At&T Intellectual Property I, L.P. Dual-band communication device and method for use therewith
US10530505B2 (en) 2016-12-08 2020-01-07 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves along a transmission medium
US10103422B2 (en) 2016-12-08 2018-10-16 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10777873B2 (en) 2016-12-08 2020-09-15 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10069535B2 (en) 2016-12-08 2018-09-04 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves having a certain electric field structure
US10411356B2 (en) 2016-12-08 2019-09-10 At&T Intellectual Property I, L.P. Apparatus and methods for selectively targeting communication devices with an antenna array
US9911020B1 (en) 2016-12-08 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for tracking via a radio frequency identification device
US10938108B2 (en) 2016-12-08 2021-03-02 At&T Intellectual Property I, L.P. Frequency selective multi-feed dielectric antenna system and methods for use therewith
US9998870B1 (en) 2016-12-08 2018-06-12 At&T Intellectual Property I, L.P. Method and apparatus for proximity sensing
US10389037B2 (en) 2016-12-08 2019-08-20 At&T Intellectual Property I, L.P. Apparatus and methods for selecting sections of an antenna array and use therewith
US10340983B2 (en) 2016-12-09 2019-07-02 At&T Intellectual Property I, L.P. Method and apparatus for surveying remote sites via guided wave communications
US10264586B2 (en) 2016-12-09 2019-04-16 At&T Mobility Ii Llc Cloud-based packet controller and methods for use therewith
US9838896B1 (en) 2016-12-09 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for assessing network coverage
US10090605B2 (en) * 2016-12-21 2018-10-02 National Chung Shan Institute Of Science And Technology Active phased array antenna system with hierarchical modularized architecture
US9973940B1 (en) 2017-02-27 2018-05-15 At&T Intellectual Property I, L.P. Apparatus and methods for dynamic impedance matching of a guided wave launcher
US10298293B2 (en) 2017-03-13 2019-05-21 At&T Intellectual Property I, L.P. Apparatus of communication utilizing wireless network devices
CN106888049B (en) * 2017-03-20 2019-07-12 西安空间无线电技术研究所 A kind of moving communication satellite multi-beam load front end structure
US10044403B1 (en) * 2017-05-04 2018-08-07 Samsung Electronics Co., Ltd Apparatus and method for multi-beam initial synchronization for 5G-NR system
WO2019095182A1 (en) * 2017-11-16 2019-05-23 Lenovo (Beijing) Limited Method and apparatus for mimo transmission
WO2019126826A1 (en) 2017-12-24 2019-06-27 Anokiwave, Inc. Beamforming integrated circuit, aesa system and method
CN108449107B (en) * 2018-01-25 2020-04-10 成都天锐星通科技有限公司 Multi-beam tile type TR component
US10998640B2 (en) 2018-05-15 2021-05-04 Anokiwave, Inc. Cross-polarized time division duplexed antenna
US11546138B2 (en) * 2018-09-28 2023-01-03 Benjamin Allan Mord Information integrity in blockchain and related technologies
CN109273870A (en) * 2018-10-12 2019-01-25 广东博纬通信科技有限公司 A kind of six beam array antenna of wideband
CN110265794B (en) * 2019-03-18 2021-03-26 西安天伟电子系统工程有限公司 Active phased array antenna and method for controlling antenna beam
KR20220002960A (en) * 2019-04-19 2022-01-07 구루 와이어리스, 아이엔씨. Roaming and segmented power generation devices configured for wireless power transfer
FR3098024B1 (en) * 2019-06-27 2022-06-03 Thales Sa Reduced complexity two-dimensional multibeam analog trainer for reconfigurable active array antennas
CN112165350B (en) * 2020-08-24 2022-04-12 中国电子科技集团公司第二十九研究所 Down phased array agile beam control device and method for medium and low orbit satellite
EP4243212A1 (en) * 2020-11-04 2023-09-13 KMW Inc. Method for temporally/spatially separating polarized beams and correcting channel irreversibility, and multi-beam antenna device using same
CN112448176B (en) * 2020-11-09 2022-01-04 西北工业大学 Wide-angle polarization non-sensitive rectification antenna

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105973A (en) * 1976-10-15 1978-08-08 Bell Telephone Laboratories, Incorporated Multibeam, digitally modulated, time division, switched satellite communications system
US4831619A (en) * 1986-08-14 1989-05-16 Hughes Aircraft Company Satellite communications system having multiple downlink beams powered by pooled transmitters
US4882588A (en) * 1986-12-22 1989-11-21 Hughes Aircraft Company Steerable beam antenna system using butler matrix
EP0420739A1 (en) * 1989-09-26 1991-04-03 Agence Spatiale Europeenne Feeding device for a multiple beam antenna
EP0484662A2 (en) * 1990-11-03 1992-05-13 Deutsche Aerospace AG Communication system for bidirectional message transmission between ground stations, using a communication satellite
US5132694A (en) * 1989-06-29 1992-07-21 Ball Corporation Multiple-beam array antenna
WO1993009614A1 (en) * 1991-11-08 1993-05-13 Calling Communications Corporation Beam compensation methods for satellite communication system
EP0543644A2 (en) * 1991-11-21 1993-05-26 Motorola, Inc. Command authentication process between a master and a slave station encrypted messages
EP0624008A2 (en) * 1993-05-07 1994-11-09 Space Systems / Loral, Inc. Mobile communication satellite payload
EP0639035A1 (en) * 1993-08-12 1995-02-15 Nortel Networks Corporation Base station antenna arrangement
US5506904A (en) * 1993-08-04 1996-04-09 Scientific-Atlanta, Inc. System and method for transmitting and receiving variable length authorization control for digital services
FR2728366A1 (en) * 1994-12-19 1996-06-21 Europ Agence Spatiale NETWORK CONFORMING BEAMS FOR RADIOFREQUENCY ANTENNA IMPLEMENTING FAST FOURIER TRANSFORMATION AND HARDWARE STRUCTURE IMPLEMENTING SUCH A NETWORK, ESPECIALLY FOR SPACE APPLICATIONS
EP0767555A2 (en) * 1995-10-02 1997-04-09 AT&T Corp. Method and apparatus for reducing data delay within a multi-channel shared-circuit data processing environment
EP0803930A2 (en) * 1996-04-23 1997-10-29 Trw Inc. Antenna system for controlling and redirecting communication beams
US5708716A (en) * 1995-11-30 1998-01-13 Amsc Subsidiary Corporation Fraud detection and user validation system for mobile earth terminal communication device
FR2751494A1 (en) * 1996-07-18 1998-01-23 Motorola Inc GEOSYNCHRONOUS TELECOMMUNICATIONS SATELLITE SYSTEM WHOSE SERVICE AREA CAN BE RECONFIGURED
GB2316838A (en) * 1996-08-29 1998-03-04 Mitsubishi Electric Corp Multiplexer device and multiplexing method

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962383A (en) * 1984-11-08 1990-10-09 Allied-Signal Inc. Low profile array antenna system with independent multibeam control
US4688250A (en) * 1986-01-29 1987-08-18 Rca Corporation Apparatus and method for effecting a key change via a cryptographically protected link
US4837580A (en) * 1987-05-14 1989-06-06 Hazeltine Corporation Microwave landing system with fail-soft switching of dual transmitters, beam steering and sector antennas
US5258767A (en) * 1989-03-14 1993-11-02 Kokusai Denshin Denwa Co., Ltd. Antenna system for shaped beam
SE465797B (en) 1990-03-07 1991-10-28 Ericsson Telefon Ab L M PROCEDURE TO TRANSFER SYNCHRONIZATION INFORMATION FOR CRYPED TRANSFER IN A MOBILE RADIO SYSTEM
US5390245A (en) 1990-03-09 1995-02-14 Telefonaktiebolaget L M Ericsson Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system
US5091942A (en) 1990-07-23 1992-02-25 Ericsson Ge Mobile Communications Holding, Inc. Authentication system for digital cellular communications
US5148485A (en) 1990-07-20 1992-09-15 Ericsson Ge Mobile Communications Holding, Inc. Encrypton system for digital cellular communications
US5134417A (en) * 1990-07-23 1992-07-28 Hughes Aircraft Company Plural frequency matrix multiplexer
GB2247356A (en) * 1990-08-25 1992-02-26 Siemens Plessey Electronic Radar systems
US5260935A (en) * 1991-03-01 1993-11-09 Washington University Data packet resequencer for a high speed data switch
US6157621A (en) * 1991-10-28 2000-12-05 Teledesic Llc Satellite communication system
FR2690010B1 (en) * 1992-04-09 1994-05-27 Europ Agence Spatiale METHOD FOR CONTROLLING A SCANNING ANTENNA.
US5373299A (en) * 1993-05-21 1994-12-13 Trw Inc. Low-profile wideband mode forming network
US5574967A (en) 1994-01-11 1996-11-12 Ericsson Ge Mobile Communications, Inc. Waste energy control and management in power amplifiers
US5539730A (en) 1994-01-11 1996-07-23 Ericsson Ge Mobile Communications Inc. TDMA/FDMA/CDMA hybrid radio access methods
US5619503A (en) 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5548813A (en) 1994-03-24 1996-08-20 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
US5619210A (en) 1994-04-08 1997-04-08 Ericsson Inc. Large phased-array communications satellite
US5563606A (en) * 1994-10-03 1996-10-08 Motorola, Inc. Dynamic mapping apparatus for mobile unit acquisition and method therefor
FR2729505A1 (en) * 1995-01-18 1996-07-19 Alcatel Espace MULTIFUNCTIONAL ANTENNA WITH HIGH ELECTRONIC SCAN CAPACITY IN TRANSMISSION
EP0727839A1 (en) * 1995-02-16 1996-08-21 SPACE ENGINEERING S.p.A. Multishaped beam direct radiating array antenna
US5859835A (en) * 1996-04-15 1999-01-12 The Regents Of The University Of California Traffic scheduling system and method for packet-switched networks
US5825762A (en) * 1996-09-24 1998-10-20 Motorola, Inc. Apparatus and methods for providing wireless communication to a sectorized coverage area
US5754139A (en) * 1996-10-30 1998-05-19 Motorola, Inc. Method and intelligent digital beam forming system responsive to traffic demand
US5812089A (en) * 1996-12-23 1998-09-22 Motorola, Inc. Apparatus and method for beamforming in a triangular grid pattern
US5790070A (en) * 1997-05-05 1998-08-04 Motorola, Inc. Network and method for controlling steerable beams
US6104343A (en) * 1998-01-14 2000-08-15 Raytheon Company Array antenna having multiple independently steered beams
US5977907A (en) * 1998-02-02 1999-11-02 Motorola, Inc. Method and system for antenna pattern synthesis based on geographical distribution of subscribers

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105973A (en) * 1976-10-15 1978-08-08 Bell Telephone Laboratories, Incorporated Multibeam, digitally modulated, time division, switched satellite communications system
US4831619A (en) * 1986-08-14 1989-05-16 Hughes Aircraft Company Satellite communications system having multiple downlink beams powered by pooled transmitters
US4882588A (en) * 1986-12-22 1989-11-21 Hughes Aircraft Company Steerable beam antenna system using butler matrix
US5132694A (en) * 1989-06-29 1992-07-21 Ball Corporation Multiple-beam array antenna
EP0420739A1 (en) * 1989-09-26 1991-04-03 Agence Spatiale Europeenne Feeding device for a multiple beam antenna
EP0484662A2 (en) * 1990-11-03 1992-05-13 Deutsche Aerospace AG Communication system for bidirectional message transmission between ground stations, using a communication satellite
WO1993009614A1 (en) * 1991-11-08 1993-05-13 Calling Communications Corporation Beam compensation methods for satellite communication system
EP0543644A2 (en) * 1991-11-21 1993-05-26 Motorola, Inc. Command authentication process between a master and a slave station encrypted messages
EP0624008A2 (en) * 1993-05-07 1994-11-09 Space Systems / Loral, Inc. Mobile communication satellite payload
US5506904A (en) * 1993-08-04 1996-04-09 Scientific-Atlanta, Inc. System and method for transmitting and receiving variable length authorization control for digital services
EP0639035A1 (en) * 1993-08-12 1995-02-15 Nortel Networks Corporation Base station antenna arrangement
FR2728366A1 (en) * 1994-12-19 1996-06-21 Europ Agence Spatiale NETWORK CONFORMING BEAMS FOR RADIOFREQUENCY ANTENNA IMPLEMENTING FAST FOURIER TRANSFORMATION AND HARDWARE STRUCTURE IMPLEMENTING SUCH A NETWORK, ESPECIALLY FOR SPACE APPLICATIONS
EP0767555A2 (en) * 1995-10-02 1997-04-09 AT&T Corp. Method and apparatus for reducing data delay within a multi-channel shared-circuit data processing environment
US5708716A (en) * 1995-11-30 1998-01-13 Amsc Subsidiary Corporation Fraud detection and user validation system for mobile earth terminal communication device
EP0803930A2 (en) * 1996-04-23 1997-10-29 Trw Inc. Antenna system for controlling and redirecting communication beams
FR2751494A1 (en) * 1996-07-18 1998-01-23 Motorola Inc GEOSYNCHRONOUS TELECOMMUNICATIONS SATELLITE SYSTEM WHOSE SERVICE AREA CAN BE RECONFIGURED
GB2316838A (en) * 1996-08-29 1998-03-04 Mitsubishi Electric Corp Multiplexer device and multiplexing method

Also Published As

Publication number Publication date
US20020060993A1 (en) 2002-05-23
US6377558B1 (en) 2002-04-23
BR9909505A (en) 2000-12-12
ID27433A (en) 2001-04-12
US20020080066A1 (en) 2002-06-27
WO1999052181A2 (en) 1999-10-14
US7027454B2 (en) 2006-04-11
KR20010042520A (en) 2001-05-25
AU755338B2 (en) 2002-12-12
EP1070367A2 (en) 2001-01-24
CN1304567A (en) 2001-07-18
AU2874799A (en) 1999-10-25
HK1038646A1 (en) 2002-03-22

Similar Documents

Publication Publication Date Title
WO1999052181A3 (en) Multi-beam transmit array with low intermodulation
US7183995B2 (en) Antenna configurations for reduced radar complexity
US5959578A (en) Antenna architecture for dynamic beam-forming and beam reconfigurability with space feed
US6995730B2 (en) Antenna configurations for reduced radar complexity
US7283844B2 (en) Multi-beam antenna wireless network system
US7064710B1 (en) Multiple beam steered subarrays antenna system
EP1987567B1 (en) A shared phased array cluster beamformer
EP1943698B1 (en) Phased array antenna systems and methods
US9692489B1 (en) Transceiver using novel phased array antenna panel for concurrently transmitting and receiving wireless signals
CA2181282A1 (en) Directive Beam Selectivity for High-Speed Wireless Communication Networks
JPH11514506A (en) Angular diversity / spaced diversity mobile phone antenna and method
CA2142583A1 (en) Base station antenna arrangement
EP0963006A3 (en) Reconfigurable multiple beam satellite phased array antenna
TW353818B (en) Antenna system for controlling and redirecting communications beams
WO2001063776A3 (en) Transmitting beam forming in smart antenna array systems
EP1233473A3 (en) Phased array beamformer module driving two elements
WO2006044579A3 (en) Wireless communication method and antenna system for determining direction of arrival information
EP1049269A3 (en) Satellite transmission system with adaptive transmission loss compensation
US6970142B1 (en) Antenna configurations for reduced radar complexity
US5257031A (en) Multibeam antenna which can provide different beam positions according to the angular sector of interest
SE9701684L (en) Method for using lobe ports in a lobe forming network and an antenna arrangement
AR003749A1 (en) DISPOSAL OF ANTENNAS AND DISPOSITION OF RADIOCOMMUNICATIONS INCLUDING IT
EP1523785B1 (en) Common aperture antenna
GB2315644A (en) Geosynchronous communications satellite system with reconfigurable service area
EP0987837A3 (en) Dual phased-array payload concept

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 99807081.5

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 28747/99

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 1999909572

Country of ref document: EP

Ref document number: 1020007011154

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 1999909572

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1020007011154

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 28747/99

Country of ref document: AU

WWR Wipo information: refused in national office

Ref document number: 1020007011154

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1999909572

Country of ref document: EP