EP0959525A3 - Antenna arrangement and radiotelephone - Google Patents

Antenna arrangement and radiotelephone Download PDF

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Publication number
EP0959525A3
EP0959525A3 EP99102339A EP99102339A EP0959525A3 EP 0959525 A3 EP0959525 A3 EP 0959525A3 EP 99102339 A EP99102339 A EP 99102339A EP 99102339 A EP99102339 A EP 99102339A EP 0959525 A3 EP0959525 A3 EP 0959525A3
Authority
EP
European Patent Office
Prior art keywords
radiator element
reference potential
antenna arrangement
radiotelephone
resonance
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
EP99102339A
Other languages
German (de)
French (fr)
Other versions
EP0959525B1 (en
EP0959525A2 (en
Inventor
Markus Hoffmeister
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.)
Ipcom GmbH and Co KG
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0959525A2 publication Critical patent/EP0959525A2/en
Publication of EP0959525A3 publication Critical patent/EP0959525A3/en
Application granted granted Critical
Publication of EP0959525B1 publication Critical patent/EP0959525B1/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
    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/245—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic

Abstract

Es wird ein Funkgerät (1) mit einer Antennenanordnung (5, 10) vorgeschlagen, die wahlweise eine gerichtete Abstrahlcharakteristik (15) oder eine omnidirektionale Abstrahlcharakteristik (20) aufweist. Dabei sind mindestens ein erstes Strahlerelement (5) und mindestens ein zweites Strahlerelement (10) über einer Bezugspotentialfläche (25) einander benachbart angeordnet. Eine Speisung des ersten Strahlerelementes (5) erfolgt über ein Antennennetzwerk (30). Das zweite Strahlerelement (10) ist zwischen einer hochohmigen und einer niederohmigen Impedanz (35) umschaltbar mit dem Bezugspotential (80) der Bezugspotentialfläche (25) verbunden. Das erste Strahlerelement (5) ist bei der Betriebswellenlänge resonant ausgeführt. Die Resonanz des zweiten Strahlerelementes (10) ist gegenüber der Resonanz des ersten Strahlerelementes (5) leicht verstimmt.

Figure 00000001
A radio device (1) with an antenna arrangement (5, 10) is proposed, which optionally has a directional radiation characteristic (15) or an omnidirectional radiation characteristic (20). At least one first radiator element (5) and at least one second radiator element (10) are arranged adjacent to one another over a reference potential surface (25). The first radiator element (5) is fed via an antenna network (30). The second radiator element (10) is switchably connected to the reference potential (80) of the reference potential surface (25) between a high-resistance and a low-resistance impedance (35). The first radiator element (5) is designed to be resonant at the operating wavelength. The resonance of the second radiator element (10) is slightly out of tune with the resonance of the first radiator element (5).
Figure 00000001
EP19990102339 1998-05-23 1999-02-06 Antenna arrangement and radiotelephone Expired - Lifetime EP0959525B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823126 1998-05-23
DE1998123126 DE19823126B4 (en) 1998-05-23 1998-05-23 radio set

Publications (3)

Publication Number Publication Date
EP0959525A2 EP0959525A2 (en) 1999-11-24
EP0959525A3 true EP0959525A3 (en) 2001-04-04
EP0959525B1 EP0959525B1 (en) 2009-05-13

Family

ID=7868738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990102339 Expired - Lifetime EP0959525B1 (en) 1998-05-23 1999-02-06 Antenna arrangement and radiotelephone

Country Status (3)

Country Link
EP (1) EP0959525B1 (en)
DE (2) DE19823126B4 (en)
ES (1) ES2324747T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314277B1 (en) * 1999-07-02 2001-11-06 Yuan-Fang Hsu Electromagnetic radiation protection device of a mobile phone
DK1109247T3 (en) * 1999-12-17 2004-08-02 Siemens Ag Cell phone and method for controlling the radiation sent into the body
US6437746B1 (en) 2000-11-14 2002-08-20 Northrop Grumman Corp Cellular telephone antenna array
US7230579B2 (en) * 2002-08-01 2007-06-12 Koninklijke Philips Electronics N.V. Directional dual frequency antenna arrangement
US7024232B2 (en) * 2003-04-25 2006-04-04 Motorola, Inc. Wireless communication device with variable antenna radiation pattern and corresponding method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725938A (en) * 1970-10-05 1973-04-03 Sperry Rand Corp Direction finder system
US4700197A (en) * 1984-07-02 1987-10-13 Canadian Patents & Development Ltd. Adaptive array antenna
WO1994028595A1 (en) * 1993-05-27 1994-12-08 Griffith University Antennas for use in portable communications devices
JPH1075192A (en) * 1996-08-30 1998-03-17 Matsushita Electric Ind Co Ltd Antenna device
DE19723331A1 (en) * 1997-06-04 1998-12-10 Bosch Gmbh Robert Radio

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT393054B (en) * 1989-07-27 1991-08-12 Siemens Ag Oesterreich TRANSMITTER AND / OR RECEIVING ARRANGEMENT FOR PORTABLE DEVICES
DE4334439A1 (en) * 1993-10-09 1995-04-13 Philips Patentverwaltung Two-way radio with an antenna

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725938A (en) * 1970-10-05 1973-04-03 Sperry Rand Corp Direction finder system
US4700197A (en) * 1984-07-02 1987-10-13 Canadian Patents & Development Ltd. Adaptive array antenna
WO1994028595A1 (en) * 1993-05-27 1994-12-08 Griffith University Antennas for use in portable communications devices
JPH1075192A (en) * 1996-08-30 1998-03-17 Matsushita Electric Ind Co Ltd Antenna device
GB2320816A (en) * 1996-08-30 1998-07-01 Matsushita Electric Ind Co Ltd Antenna system
DE19723331A1 (en) * 1997-06-04 1998-12-10 Bosch Gmbh Robert Radio

Also Published As

Publication number Publication date
EP0959525B1 (en) 2009-05-13
ES2324747T3 (en) 2009-08-13
EP0959525A2 (en) 1999-11-24
DE19823126A1 (en) 1999-11-25
DE59915023D1 (en) 2009-06-25
DE19823126B4 (en) 2012-08-23

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