EP0520197A3 - Foil antenna. - Google Patents

Foil antenna. Download PDF

Info

Publication number
EP0520197A3
EP0520197A3 EP19920108893 EP92108893A EP0520197A3 EP 0520197 A3 EP0520197 A3 EP 0520197A3 EP 19920108893 EP19920108893 EP 19920108893 EP 92108893 A EP92108893 A EP 92108893A EP 0520197 A3 EP0520197 A3 EP 0520197A3
Authority
EP
European Patent Office
Prior art keywords
antenna
foil
inductors
radiating elements
foil antenna
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
EP19920108893
Other languages
German (de)
French (fr)
Other versions
EP0520197A2 (en
EP0520197B1 (en
Inventor
Christoph Petermann
Heinrich Fluegel
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.)
Hagenuk Telecom GmbH
Original Assignee
Hagenuk Vorm Neufeldt and Kuhnke GmbH
Hagenuk Telecom 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 Hagenuk Vorm Neufeldt and Kuhnke GmbH, Hagenuk Telecom GmbH filed Critical Hagenuk Vorm Neufeldt and Kuhnke GmbH
Publication of EP0520197A2 publication Critical patent/EP0520197A2/en
Publication of EP0520197A3 publication Critical patent/EP0520197A3/en
Application granted granted Critical
Publication of EP0520197B1 publication Critical patent/EP0520197B1/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas

Abstract

The invention relates to a foil antenna for radio telephones, especially cordless telephones. Instead of the previously normal rod antenna, whose length corresponds to a quarter of the wavelength of the frequency which is to be transmitted or received, a foil antenna is proposed as the antenna. The foil antenna according to the invention has radiating elements which are connected to one another by means of inductors. In addition, the matching circuit is accommodated on the foil. The inductors which are arranged between the radiating elements are essentially constructed as straight line pieces. The antenna according to the invention can be produced easily in production-engineering terms, can be completely integrated into the housing of the cordless telephone, and has a relatively high efficiency with dimensions which are considerably less than the length of the previously normal rod antenna. <IMAGE>
EP92108893A 1991-06-25 1992-05-27 Foil antenna Expired - Lifetime EP0520197B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4121333A DE4121333A1 (en) 1991-06-25 1991-06-25 FILM ANTENNA
DE4121333 1991-06-25

Publications (3)

Publication Number Publication Date
EP0520197A2 EP0520197A2 (en) 1992-12-30
EP0520197A3 true EP0520197A3 (en) 1994-10-12
EP0520197B1 EP0520197B1 (en) 1997-05-28

Family

ID=6434925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108893A Expired - Lifetime EP0520197B1 (en) 1991-06-25 1992-05-27 Foil antenna

Country Status (6)

Country Link
EP (1) EP0520197B1 (en)
JP (1) JPH05191126A (en)
AT (1) ATE153803T1 (en)
DE (2) DE4121333A1 (en)
ES (1) ES2103012T3 (en)
ZA (1) ZA924346B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324480C2 (en) * 1993-07-21 1997-07-17 Hirschmann Richard Gmbh Co Antenna arrangement
DE19511300A1 (en) * 1995-03-28 1996-10-02 Telefunken Microelectron Method of forming antenna structure for inserting into chip-card
DE19707535A1 (en) * 1997-02-25 1998-08-27 Rothe Lutz Dr Ing Habil Foil emitter
US6204826B1 (en) * 1999-07-22 2001-03-20 Ericsson Inc. Flat dual frequency band antennas for wireless communicators
JP3649099B2 (en) * 2000-08-04 2005-05-18 松下電器産業株式会社 Antenna for wireless communication
EP1258945A3 (en) 2001-05-16 2003-11-05 The Furukawa Electric Co., Ltd. Line-shaped antenna
JP3833685B2 (en) * 2002-11-21 2006-10-18 三菱電機株式会社 Mobile phone
JP2005252366A (en) 2004-03-01 2005-09-15 Sony Corp Inverted-f antenna
US7183983B2 (en) 2005-04-26 2007-02-27 Nokia Corporation Dual-layer antenna and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2229865A (en) * 1938-07-25 1941-01-28 Transcontinental & Western Air Radio antenna system
GB1009527A (en) * 1961-12-29 1965-11-10 Collins Radio Co Dual frequency antenna structure
US4079268A (en) * 1976-10-06 1978-03-14 Nasa Thin conformal antenna array for microwave power conversion
JPS56704A (en) * 1979-06-14 1981-01-07 Matsushita Electric Ind Co Ltd Antenna unit
US4816839A (en) * 1987-12-18 1989-03-28 Amtech Corporation Transponder antenna
EP0470797A2 (en) * 1990-08-10 1992-02-12 Matsushita Electric Industrial Co., Ltd. Antenna apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454514A (en) * 1981-05-14 1984-06-12 Tokyo Shibaura Denki Kabushiki Kaisha Strip antenna with polarization control
DE3306054A1 (en) * 1983-02-22 1984-08-23 Meier Meßtechnik, 3400 Göttingen Foil antenna
KR900009111B1 (en) * 1986-11-07 1990-12-22 야기 안테나 가부시기가이샤 Antenna devices of film

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2229865A (en) * 1938-07-25 1941-01-28 Transcontinental & Western Air Radio antenna system
GB1009527A (en) * 1961-12-29 1965-11-10 Collins Radio Co Dual frequency antenna structure
US4079268A (en) * 1976-10-06 1978-03-14 Nasa Thin conformal antenna array for microwave power conversion
JPS56704A (en) * 1979-06-14 1981-01-07 Matsushita Electric Ind Co Ltd Antenna unit
US4816839A (en) * 1987-12-18 1989-03-28 Amtech Corporation Transponder antenna
EP0470797A2 (en) * 1990-08-10 1992-02-12 Matsushita Electric Industrial Co., Ltd. Antenna apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 44 (E - 50)<716> 24 March 1981 (1981-03-24) *

Also Published As

Publication number Publication date
DE4121333A1 (en) 1993-01-14
DE4121333C2 (en) 1993-09-09
EP0520197A2 (en) 1992-12-30
EP0520197B1 (en) 1997-05-28
JPH05191126A (en) 1993-07-30
DE59208531D1 (en) 1997-07-03
ES2103012T3 (en) 1997-08-16
ZA924346B (en) 1993-02-24
ATE153803T1 (en) 1997-06-15

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