CA2061743A1 - End loaded helix antenna - Google Patents

End loaded helix antenna

Info

Publication number
CA2061743A1
CA2061743A1 CA2061743A CA2061743A CA2061743A1 CA 2061743 A1 CA2061743 A1 CA 2061743A1 CA 2061743 A CA2061743 A CA 2061743A CA 2061743 A CA2061743 A CA 2061743A CA 2061743 A1 CA2061743 A1 CA 2061743A1
Authority
CA
Canada
Prior art keywords
antenna element
antenna
helix antenna
end loaded
conductive member
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2061743A
Other languages
French (fr)
Other versions
CA2061743C (en
Inventor
Peter Charles Strickland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMS Technologies Canada Ltd
Original Assignee
CAL Corp
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 CAL Corp filed Critical CAL Corp
Priority to CA002061743A priority Critical patent/CA2061743C/en
Priority to US07/893,525 priority patent/US5329287A/en
Publication of CA2061743A1 publication Critical patent/CA2061743A1/en
Application granted granted Critical
Publication of CA2061743C publication Critical patent/CA2061743C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas

Abstract

A device is provided for use in a helical antenna having an antenna element wound about the periphery of a dielectric support post, the post being in the form of a tube or cylinder. The device has an electrically conductive member electrically connected to one end of said antenna element. The conductive member is of any appropriate shape or configuration and is operable to increase the loading on the antenna whereby standing waves on the antenna element are reduced and a more uniform electrical current is produced along the antenna element.
CA002061743A 1992-02-24 1992-02-24 End loaded helix antenna Expired - Lifetime CA2061743C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002061743A CA2061743C (en) 1992-02-24 1992-02-24 End loaded helix antenna
US07/893,525 US5329287A (en) 1992-02-24 1992-06-04 End loaded helix antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002061743A CA2061743C (en) 1992-02-24 1992-02-24 End loaded helix antenna

Publications (2)

Publication Number Publication Date
CA2061743A1 true CA2061743A1 (en) 1993-08-25
CA2061743C CA2061743C (en) 1996-05-14

Family

ID=4149317

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002061743A Expired - Lifetime CA2061743C (en) 1992-02-24 1992-02-24 End loaded helix antenna

Country Status (2)

Country Link
US (1) US5329287A (en)
CA (1) CA2061743C (en)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3227631B2 (en) * 1993-10-12 2001-11-12 株式会社村田製作所 antenna
FR2711277B1 (en) * 1993-10-14 1995-11-10 Alcatel Mobile Comm France Antenna of the type for portable radio device, method of manufacturing such an antenna and portable radio device comprising such an antenna.
CA2139198C (en) * 1993-12-28 1998-08-18 Norihiko Ohmuro Broad conical-mode helical antenna
GB2292257B (en) * 1994-06-22 1999-04-07 Sidney John Branson An antenna
GB9417450D0 (en) * 1994-08-25 1994-10-19 Symmetricom Inc An antenna
AU3677795A (en) * 1995-04-26 1996-11-18 Westinghouse Electric Corporation Helical antenna having a parasitic element and a method of u sing the same
US5793338A (en) * 1995-08-09 1998-08-11 Qualcomm Incorporated Quadrifilar helix antenna and feed network
US5572172A (en) * 1995-08-09 1996-11-05 Qualcomm Incorporated 180° power divider for a helix antenna
US5828348A (en) * 1995-09-22 1998-10-27 Qualcomm Incorporated Dual-band octafilar helix antenna
GB9601250D0 (en) * 1996-01-23 1996-03-27 Symmetricom Inc An antenna
FI106895B (en) * 1996-02-16 2001-04-30 Filtronic Lk Oy A combined structure of a helix antenna and a dielectric disk
GB9603914D0 (en) * 1996-02-23 1996-04-24 Symmetricom Inc An antenna
GB2323476B (en) * 1997-03-20 2002-01-16 David Ganeshmoorthy Communication antenna and equipment
US5963170A (en) * 1997-05-22 1999-10-05 Lucent Technologies Inc. Fixed dual frequency band antenna
FI111884B (en) 1997-12-16 2003-09-30 Filtronic Lk Oy Helix antenna for dual frequency operation
CN1291361A (en) * 1998-01-29 2001-04-11 西门子公司 Radio equipment
GB9813002D0 (en) 1998-06-16 1998-08-12 Symmetricom Inc An antenna
US6181296B1 (en) 1998-10-29 2001-01-30 Harris Corporation Cast core fabrication of helically wound antenna
GB9828768D0 (en) 1998-12-29 1999-02-17 Symmetricom Inc An antenna
EP1151496A4 (en) * 1999-02-04 2005-01-12 Maxrad Inc Compact wideband antenna
GB9902765D0 (en) 1999-02-08 1999-03-31 Symmetricom Inc An antenna
GB9912441D0 (en) 1999-05-27 1999-07-28 Symmetricon Inc An antenna
US20020113740A1 (en) * 1999-06-01 2002-08-22 Nadar Fayyaz Flat-plate monopole antennae
US6181298B1 (en) 1999-08-19 2001-01-30 Ems Technologies Canada, Ltd. Top-fed quadrafilar helical antenna
US6243051B1 (en) 1999-11-05 2001-06-05 Harris Corporation Dual helical antenna for variable beam width coverage
FI113220B (en) * 2000-06-12 2004-03-15 Filtronic Lk Oy Antenna with several bands
US6501437B1 (en) 2000-10-17 2002-12-31 Harris Corporation Three dimensional antenna configured of shaped flex circuit electromagnetically coupled to transmission line feed
US6373448B1 (en) 2001-04-13 2002-04-16 Luxul Corporation Antenna for broadband wireless communications
JP4763167B2 (en) * 2001-07-25 2011-08-31 古野電気株式会社 Helical antenna and helical antenna array
AU2003214696A1 (en) * 2002-04-04 2003-10-20 E.M.W. Antenna Co., Ltd. Dual band antenna
GB2389232B (en) * 2002-06-01 2004-10-27 Motorola Inc Multi-frequency band antenna and methods of tuning and manufacture
US7038636B2 (en) * 2003-06-18 2006-05-02 Ems Technologies Cawada, Ltd. Helical antenna
US7614556B2 (en) * 2004-11-05 2009-11-10 Goliath Solutions, Llc Distributed RFID antenna array utilizing circular polarized helical antennas
US7307590B1 (en) 2006-05-19 2007-12-11 The United States Of America As Represented By The Secretary Of The Navy Wideband traveling wave microstrip antenna
US8436775B2 (en) * 2009-01-14 2013-05-07 Continental Automotive Systems, Inc. Fakra-compliant antenna
US9793612B1 (en) * 2013-07-15 2017-10-17 The United States Of America, As Represented By The Secretary Of The Navy Reduced profile leaky-wave antenna
US9893715B2 (en) 2013-12-09 2018-02-13 Shure Acquisition Holdings, Inc. Adaptive self-tunable antenna system and method
US9923266B1 (en) 2013-12-16 2018-03-20 First Rf Corporation Antenna array with tilted conical helical antennas
US10374299B1 (en) 2015-02-06 2019-08-06 First Rf Corporation Method for making a radiator structure for a helical antenna
US10931019B1 (en) * 2015-12-14 2021-02-23 Lockheed Martin Corporation Helix antenna
US10381737B2 (en) * 2016-09-15 2019-08-13 Stc.Unm 3D printed miniaturized quadrifilar helix antenna
WO2021001799A1 (en) * 2019-07-04 2021-01-07 Poynting Antennas (Pty) Limited Helical antenna
US11258181B2 (en) * 2019-12-20 2022-02-22 Eagle Technology, Llc Systems and methods for providing a high gain space deployable helix antenna
US11682841B2 (en) * 2021-09-16 2023-06-20 Eagle Technology, Llc Communications device with helically wound conductive strip and related antenna devices and methods

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA564984A (en) * 1958-10-21 Compagnie Generale De Telegraphie Sans Fil Omnidirectional aerials
CA845308A (en) * 1970-06-23 A. Fredriksson Oke Helical antenna for irradiating an earth formation penetrated by a borehole and method of forming same
CA759565A (en) * 1967-05-23 Electronics Research Circular-type antenna
CA465508A (en) * 1950-05-30 W. Scheldorf Marvel Single-ended antenna
US2511611A (en) * 1946-09-17 1950-06-13 Hazeltine Research Inc Aperiodic directive antenna system
CH499888A (en) * 1967-12-15 1970-11-30 Onera (Off Nat Aerospatiale) Helically wound single conductor antenna of reduced dimensions, and method for its manufacture
US3858220A (en) * 1973-11-12 1974-12-31 S Arnow Tunable spiral dipole antenna
US3852756A (en) * 1974-02-15 1974-12-03 Us Navy Electrically small resonant antenna with capacitively coupled load
GB1531925A (en) * 1975-01-29 1978-11-15 Abreu J Helical antennas
BR7500557A (en) * 1975-01-29 1975-12-16 Abreu Joao Do Espirito Santo IMPROVEMENTS IN AND REGARDING THE HELICOIDAL TYPE ANTENNA
US4014028A (en) * 1975-08-11 1977-03-22 Trw Inc. Backfire bifilar helical antenna
US4012744A (en) * 1975-10-20 1977-03-15 Itek Corporation Helix-loaded spiral antenna
US4160979A (en) * 1976-06-21 1979-07-10 National Research Development Corporation Helical radio antennae
US4148030A (en) * 1977-06-13 1979-04-03 Rca Corporation Helical antennas
US4121218A (en) * 1977-08-03 1978-10-17 Motorola, Inc. Adjustable antenna arrangement for a portable radio
US4161737A (en) * 1977-10-03 1979-07-17 Albright Eugene A Helical antenna
US4163981A (en) * 1978-03-27 1979-08-07 Wilson Thomas J Spring tunable helical whip antenna
US4169267A (en) * 1978-06-19 1979-09-25 The United States Of America As Represented By The Secretary Of The Air Force Broadband helical antennas
US4309707A (en) * 1979-05-08 1982-01-05 National Research Development Corporation Radio antennae structures employing helical conductors
CA1186049A (en) * 1980-07-09 1985-04-23 James F. Corum Antenna having a closed standing wave path
GB2105521A (en) * 1981-08-12 1983-03-23 Univ Surrey Antenna
US4494117A (en) * 1982-07-19 1985-01-15 The United States Of America As Represented By The Secretary Of The Navy Dual sense, circularly polarized helical antenna
CA1223346A (en) * 1984-08-14 1987-06-23 Siltronics Ltd. Antenna
US4580023A (en) * 1985-03-06 1986-04-01 Amana Refrigeration, Inc. Microwave oven with circular polarization
CA1257694A (en) * 1985-08-05 1989-07-18 Hisamatsu Nakano Antenna system
US4772895A (en) * 1987-06-15 1988-09-20 Motorola, Inc. Wide-band helical antenna
JPH03128507A (en) * 1989-10-13 1991-05-31 Sumitomo Electric Ind Ltd Helical antenna

Also Published As

Publication number Publication date
CA2061743C (en) 1996-05-14
US5329287A (en) 1994-07-12

Similar Documents

Publication Publication Date Title
CA2061743A1 (en) End loaded helix antenna
US3573840A (en) Small bulk helically wound antennae and method for making same
CA2139198A1 (en) Broad Conical-Mode Helical Antenna
CA2116188A1 (en) Metallized Implantable Cardiac Electrode
EP0716469A4 (en) Antenna device and portable radio device
EP0742604A3 (en) Antenna for use with a portable radio apparatus
EP0776061A3 (en)
US5686927A (en) Retractable antenna
DE68908881D1 (en) REINFORCED ELECTRIC COAXIAL CABLE WITH LOW DIELECTRIC CONSTANT.
KR950701458A (en) Antenna assembly for radio circuit and method therefor
DE69612598T2 (en) Multi-band antenna with a dielectric resonance circuit with distributed constants and portable multi-band radio with such an antenna
CA2241370A1 (en) Antenna assembly comprising whip antenna and helical antenna contained in antenna top rotatably mounted on top end of the whip antenna
TW431032B (en) Antenna having a helical antenna element extending along a cylindrical flexible substrate
CA2164551A1 (en) Antenna Connecting Device of Portable Radio Sets
JP2791848B2 (en) Radio antenna
US4104639A (en) Antenna formed of two closely coupled linear conductors with helical top loading
CA2024909A1 (en) Cable reel for expandable and contractible steering device of vehicle
US6259420B1 (en) Antenna element with helical radiation members
GB2050701A (en) Improvements in or relating to radio antennae structures
US5061942A (en) Rod-shaped transceiver antenna especially for 450-470 mhz band
EP0350308A3 (en) A three-band antenna for vehicles
JP3459434B2 (en) antenna
TW374256B (en) Antenna assembly comprising whip antenna and helical antenna contained in antenna top rotatably mounted on top end of the whip antenna
SU817755A1 (en) Base insulator
ES2006837A6 (en) Transducer with apertures in tubular conductor

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry