EP1108616A2 - Flach- Mikrostreifenleiterantenne für ein Kraftfahrzeugsystem - Google Patents

Flach- Mikrostreifenleiterantenne für ein Kraftfahrzeugsystem Download PDF

Info

Publication number
EP1108616A2
EP1108616A2 EP00125605A EP00125605A EP1108616A2 EP 1108616 A2 EP1108616 A2 EP 1108616A2 EP 00125605 A EP00125605 A EP 00125605A EP 00125605 A EP00125605 A EP 00125605A EP 1108616 A2 EP1108616 A2 EP 1108616A2
Authority
EP
European Patent Office
Prior art keywords
planar antenna
microstrip
antenna according
radiant element
magnets
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.)
Withdrawn
Application number
EP00125605A
Other languages
English (en)
French (fr)
Other versions
EP1108616A3 (de
Inventor
Guido Biffi Gentili
Pietro Mantovani
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.)
Ask Industries SpA
Original Assignee
Ask Industries SpA
Zendar SpA
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 Ask Industries SpA, Zendar SpA filed Critical Ask Industries SpA
Publication of EP1108616A2 publication Critical patent/EP1108616A2/de
Publication of EP1108616A3 publication Critical patent/EP1108616A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
    • 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
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the present invention relates to a microstrip, suitable for use of motor-vehicles systems.
  • the present invention relates to a planar microstrip antenna for motor-vehicle systems suitable for cellular telephony, and especially for systems operating in dual band resonance frequency, as well as for applications other than telephony.
  • the planar antenna of the present invention is preferably applied on the windows of motor-vehicles; more specifically on windscreens and/or rear windows. It is particularly configured to be used at prefixed frequencies, 800/900 MHz (GSM, ETACS, AMPS, PCD) adopted in Europe.
  • GSM Global System for Mobile Communications
  • ETACS ETACS
  • AMPS AMPS
  • PCD PCD
  • Planar microstrip antennas are known; they comprise:
  • planar microstrip antennas may be installed on any type of motor vehicles, allow to operate within a bandwidth equal to or greater than 10%, with a uniform irradiation on the horizontal plane, a prevailingly vertical polarization of the electric. field, and field boundary emissions within the passengers' compartment, avoiding to overcome the electromagnetic field limits indicated by the norms in force.
  • Object of the present invention is to realize a planar antenna ensuing from the theories of the so-called patch-antennas, specifically suitable to operate at dual-band frequencies such as those of 900 MHz and 11800 MHz, usually adopted in the present European radio-telephone systems.
  • a further object of the present invention is to realize a planar antenna of the above type, having a low profile with contained dimensions, simple construction and low costs, and also easily installable in the inside of any type of vehicle.
  • the present invention allows to obtain these and other objects which will be obvious thanks to the following description of a microstrip planar antenna wherein the radiant element is so proportioned as to operated at a first prefixed resonance frequency, and the same element comprises, in close proximity and parallel to its radiating edge, at least a slot whose extension is proportioned as function of a second prefixed resonance frequency.
  • the behavior of such slot is that of a radiating edge, corresponding to said second resonance frequency.
  • Slots are rectilinear, parallel, adjoining each other and the edge of the radiant element corresponding to the first of said frequencies and are closed at the ends.
  • the antenna of the present invention lie essentially in that the same, constituted to operate at defined frequencies, can irradiate uniformly across the horizontal plane with a prevailingly vertical polarization of the electric field, and allows an adequate containment of the radiation emitted in the inside of the compartments without exceeding the admitted limits of the electromagnetic field.
  • the present invention can be installed, on a prior simple tuning, on all vehicles.
  • the figures refer to a planar patch-antenna, in particular of the dual-band type, for use in motor-vehicle applications of "QWSCM” cellular telephony.
  • the planar antenna of the present invention comprises a radiant element 1, a mass plane 2 parallel to said radiant element 1, and a shorting connector 3 which connects said radiant element 1 to said mass plane 2.
  • the antenna is fed by a cable 8 through a flat armor 9 capacitive coupling 7.
  • the distance of the lower armor 9 from the upper radiant element 1 may be adjusted to optimize the radiation and circuit characteristics of the antenna, in particular to optimize its bandwidth.
  • cable 8 may be associated to a connector 10 whose position is adjustable for the maximum impedance adaptation, by sliding and tying along a slot 11 obtained on the mass plane 2.
  • the mass plane 2 is preferably obtained from a printed circuit board, metallized on one only side 12, so as to allow the realization of the feeding line with one microstrip 13.
  • the antenna has a structure simpler, easily realizable, symmetrical, with minimum overall dimensions and mechanically stronger, with minimum electromagnetic perturbations.
  • the transition to the coaxial cable 8 with the side inlet is made simpler.
  • Microstrips or stubs 14, orthogonal, suitably positioned and adapted in the direction of the length of said feeding line may be also applied to the feeding line 13. The arrangement of such stubs allows to widen or to restrict, to elongate or to shorten said line, according to the specific requirement of impedance adaptation, and to insert a capacity between the radiating edge of the antenna and the mass plane.
  • the mass plane 2 may be extended through a connection with the windshield or the rear window realized with glassmetallized on one side only or treated with surface applications of transparent conductive films.
  • the adoption of a printed circuit board, metallized on one only side 12 allows to exploit the mass plane 2 also as a support for a GPS amplified antenna.
  • the low-noise amplifying electronic circuit 15 of the GPS antenna and the related connections are applicable on the metallized layer 12 of the board, wherever it does not hamper the path of the microstrip feeding line 13, with or without orthogonal stubs 14, for instance, in one of the external angles of the mass plane.
  • the path of the feeding line from edge 17 to the base of the capacitive coupling 7 may also be inclined. Circuit 15 of the GPS antenna is connected and engaged with the corresponding "patch" ceramic tile 16, with superposed
  • Such characteristics cause the antenna of the present invention to be substantially universal for applications on any type of vehicles, and allow the same to operate with a uniform irradiation on the horizontal plane at a prevailingly vertical polarization of the electric field, with electromagnetic field emissions in the inside of the vehicles within the limits allowed.
EP00125605A 1999-12-13 2000-11-22 Flach- Mikrostreifenleiterantenne für ein Kraftfahrzeugsystem Withdrawn EP1108616A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999RE000059U IT248292Y1 (it) 1999-12-13 1999-12-13 Antenna planare a microstrip, per autoveicoli.
ITRE990059 1999-12-13

Publications (2)

Publication Number Publication Date
EP1108616A2 true EP1108616A2 (de) 2001-06-20
EP1108616A3 EP1108616A3 (de) 2003-12-03

Family

ID=11399453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125605A Withdrawn EP1108616A3 (de) 1999-12-13 2000-11-22 Flach- Mikrostreifenleiterantenne für ein Kraftfahrzeugsystem

Country Status (2)

Country Link
EP (1) EP1108616A3 (de)
IT (1) IT248292Y1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003052869A1 (en) * 2001-12-19 2003-06-26 Harada Industry Co., Ltd High-bandwidth multi-band antenna
EP1351334A1 (de) * 2002-04-05 2003-10-08 Hewlett-Packard Company Integrierte Multibandantenne mit kapazitiver Einspeisung
KR20030089825A (ko) * 2002-05-20 2003-11-28 전자부품연구원 광대역 안테나
EP1575125A1 (de) * 2004-03-10 2005-09-14 DaimlerChrysler AG Verwendung einer invertierten L-Antenne in einem Kraftfahrzeug
WO2008004041A1 (en) * 2006-06-30 2008-01-10 Nokia Corporation Mechanically tunable antenna for communication devices
US7482984B2 (en) 2006-12-22 2009-01-27 Flextronics Ap, Llc Hoop antenna
US8164526B1 (en) 2008-11-03 2012-04-24 Flextronics Ap, Llc Single wire internal antenna with integral contact force spring
US8316105B2 (en) 2007-03-22 2012-11-20 Microsoft Corporation Architecture for installation and hosting of server-based single purpose applications on clients
US8313684B1 (en) 2007-12-14 2012-11-20 Flextronics Method of and device for thermoforming of antennas
EP2648276A4 (de) * 2010-11-30 2015-06-17 Asahi Glass Co Ltd Fensterscheibe und antenne für fahrzeuge
RU2650732C2 (ru) * 2013-07-01 2018-04-17 Хендэ Мотор Компани Антенна транспортного средства для мобильных служб
CN112585820A (zh) * 2018-10-10 2021-03-30 欧姆龙株式会社 电子设备
JP2022104229A (ja) * 2020-12-28 2022-07-08 パナソニックＩｐマネジメント株式会社 アンテナ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771291A (en) * 1985-08-30 1988-09-13 The United States Of America As Represented By The Secretary Of The Air Force Dual frequency microstrip antenna
JP2846482B2 (ja) * 1991-01-28 1999-01-13 三菱電機株式会社 フィルタ・アンテナ装置
DE19614068A1 (de) * 1996-04-09 1997-10-16 Fuba Automotive Gmbh Flachantenne
SE507077C2 (sv) * 1996-05-17 1998-03-23 Allgon Ab Antennanordning för en portabel radiokommunikationsanordning
WO1999028990A1 (fr) * 1997-12-01 1999-06-10 Kabushiki Kaisha Toshiba Antenne de type f inversee pour frequences multiples

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003052869A1 (en) * 2001-12-19 2003-06-26 Harada Industry Co., Ltd High-bandwidth multi-band antenna
US7109921B2 (en) 2001-12-19 2006-09-19 Harada Industries (Europe) Limited High-bandwidth multi-band antenna
EP1351334A1 (de) * 2002-04-05 2003-10-08 Hewlett-Packard Company Integrierte Multibandantenne mit kapazitiver Einspeisung
US6680705B2 (en) 2002-04-05 2004-01-20 Hewlett-Packard Development Company, L.P. Capacitive feed integrated multi-band antenna
KR20030089825A (ko) * 2002-05-20 2003-11-28 전자부품연구원 광대역 안테나
EP1575125A1 (de) * 2004-03-10 2005-09-14 DaimlerChrysler AG Verwendung einer invertierten L-Antenne in einem Kraftfahrzeug
US8212729B2 (en) 2006-06-30 2012-07-03 Nokia Corporation Mechanically tunable antenna for communication devices
CN101501933B (zh) * 2006-06-30 2013-02-13 诺基亚公司 用于通信设备的机械可调谐天线
US7755547B2 (en) 2006-06-30 2010-07-13 Nokia Corporation Mechanically tunable antenna for communication devices
WO2008004041A1 (en) * 2006-06-30 2008-01-10 Nokia Corporation Mechanically tunable antenna for communication devices
US7482984B2 (en) 2006-12-22 2009-01-27 Flextronics Ap, Llc Hoop antenna
US8316105B2 (en) 2007-03-22 2012-11-20 Microsoft Corporation Architecture for installation and hosting of server-based single purpose applications on clients
US8313684B1 (en) 2007-12-14 2012-11-20 Flextronics Method of and device for thermoforming of antennas
US8164526B1 (en) 2008-11-03 2012-04-24 Flextronics Ap, Llc Single wire internal antenna with integral contact force spring
EP2648276A4 (de) * 2010-11-30 2015-06-17 Asahi Glass Co Ltd Fensterscheibe und antenne für fahrzeuge
US9118114B2 (en) 2010-11-30 2015-08-25 Asahi Glass Company, Limited Window glass for vehicle and antenna
RU2650732C2 (ru) * 2013-07-01 2018-04-17 Хендэ Мотор Компани Антенна транспортного средства для мобильных служб
CN112585820A (zh) * 2018-10-10 2021-03-30 欧姆龙株式会社 电子设备
EP3832801A4 (de) * 2018-10-10 2022-05-04 OMRON Corporation Elektronische vorrichtung
CN112585820B (zh) * 2018-10-10 2024-04-09 欧姆龙株式会社 电子设备
JP2022104229A (ja) * 2020-12-28 2022-07-08 パナソニックＩｐマネジメント株式会社 アンテナ装置
US11862873B2 (en) 2020-12-28 2024-01-02 Panasonic Intellectual Property Management Co., Ltd. Antenna device

Also Published As

Publication number Publication date
ITRE990059U1 (it) 2001-06-13
EP1108616A3 (de) 2003-12-03
IT248292Y1 (it) 2002-12-16

Similar Documents

Publication Publication Date Title
CN1124662C (zh) 通信天线和装置
EP1096602B1 (de) Flachantenne
EP0278069B1 (de) Streifenleiterstrahler mit kleinem Querschnitt und Rundumrichtcharakteristik, besonders geeignet als Autoantenne
EP1108616A2 (de) Flach- Mikrostreifenleiterantenne für ein Kraftfahrzeugsystem
CN110024224B (zh) 天线装置
US20100302112A1 (en) Antenna for circular polarization, having a conductive base surface
KR20110113222A (ko) 평면의 용량성 부하가 걸린 자기 2극 안테나
US7821465B2 (en) Multiservice antenna system assembly
US7501992B2 (en) Planar antenna
JP2003510935A (ja) デュアルバンドマイクロストリップアンテナ
JP2003283230A (ja) アンテナ
US7443343B2 (en) Fixture for mobile radio equipment in a vehicle
EP1459410B1 (de) Breitbandige mehrbandantenne
US20120188141A1 (en) Miltiresonance antenna and methods
US6191751B1 (en) Directional antenna assembly for vehicular use
CN110574230B (zh) 车载用天线装置
CN112956078A (zh) 三维倒f天线元件以及具有其的天线组件和通信系统
US7019705B2 (en) Wide band slot cavity antenna
US20050062658A1 (en) Roof for motor vehicles
CN113745811A (zh) 天线装置
EP2495807A1 (de) Mehrbandantenne
WO2017205551A1 (en) Through-glass-antenna
CN109473787A (zh) 一种鲨鱼鳍天线组件
EP1091444B1 (de) Planare Antenne für Motorfahrzeuge
CN209357917U (zh) 一种车载lte天线

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ASK INDUSTRIES S.P.A.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040302

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20040906

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050117