EP0841715A2 - Antenne plate - Google Patents

Antenne plate Download PDF

Info

Publication number
EP0841715A2
EP0841715A2 EP97118934A EP97118934A EP0841715A2 EP 0841715 A2 EP0841715 A2 EP 0841715A2 EP 97118934 A EP97118934 A EP 97118934A EP 97118934 A EP97118934 A EP 97118934A EP 0841715 A2 EP0841715 A2 EP 0841715A2
Authority
EP
European Patent Office
Prior art keywords
partial
short
antenna
area
segment
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
EP97118934A
Other languages
German (de)
English (en)
Other versions
EP0841715A3 (fr
EP0841715B1 (fr
Inventor
Mehran Aminzadeh
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.)
Fuba Automotive GmbH and Co KG
Original Assignee
Fuba Automotive GmbH and Co KG
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 Fuba Automotive GmbH and Co KG filed Critical Fuba Automotive GmbH and Co KG
Publication of EP0841715A2 publication Critical patent/EP0841715A2/fr
Publication of EP0841715A3 publication Critical patent/EP0841715A3/fr
Application granted granted Critical
Publication of EP0841715B1 publication Critical patent/EP0841715B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • 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
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • 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 invention relates to flat antennas for terrestrially radiated Signals and for radio connections with frequencies in the GHz range, especially for mobile radio in the 900 MHz and 1.8 GHz bands, with the generic features specified in the preamble of the main claim.
  • the invention is based on an operating principle that i.a. in the German patent application No. 195 04 577 based on typical solutions of the prior art was characterized: Two plane-parallel surface elements made of electrical conductive material caused by a side short circuit are connected and one of which (the "ground reference surface") to the outer conductor and the other (the "surface segment" with the function-defining contours and dimensions) on the inner conductor a feeding coaxial cable is connected to form Operation quasi a cavity resonator. On the open side areas in the event of a resonance, a field builds up that becomes a radial radiation in usable orders of magnitude.
  • the ground reference area is sufficiently larger than the area segment connected to the inner conductor, or if it is positioned directly over a larger conductive area, a radiation characteristic similar to that of a monopole is obtained.
  • the essentially function-determining dimension of the surface segment connected to the inner conductor, the distance from the side with the short-circuit connection to the opposite surface edge, is usually based on the dimension of a quarter of the wavelength corresponding to the middle operating frequency range.
  • the antenna principle described here has one disadvantage: It requires approximately symmetrical relationships in the assignment of the two flat components, i.e. as centric as possible Arrangement of the surface segment above the ground reference surface. Leading problems with the positioning of such antennas e.g. on Vehicle bodies for which they are due to the flat design are predestined in themselves. If the flat antenna is not as additional external and add-on part - e.g. on the metallic roof or a hood - is "tolerated", then offers itself best still the installation inside the vehicle below the front or the rear window. For this, the disc should be inclined as flat as possible be.
  • An arrangement e.g.
  • the invention is therefore based on the object of measures for Influencing the operating parameters of flat antennas in the Developing the generic term of the main claim specified genus, so that the antennas better match the specifics of different Installation positions can be adjusted and the flexibility in the application of the principle is expanded.
  • the invention succeeds in influencing the radiation characteristics of the flat antenna and thereby ensuring the typical all-round radiation even under conditions of use that are initially unfavorable for the principle.
  • the means according to the invention ensure that, regardless of all modifications to antennas of the construction described here, good adaptation and good profit can always be achieved.
  • the variation of the radiation characteristic is made possible by the division of the surface segment in connection with the second short-circuit connection.
  • the division into two approximately equal halves while maintaining the overall dimension ⁇ / 4 has proven to be a favorable starting position in experiments; With minor changes in the division ratio and the width of the gap or the degree of overlap of the partial areas, additional corrections are then possible.
  • the short, ribbon-like line pieces on both sides of the partial area galvanically connected to the inner conductor of the antenna cable are used to adjust or correct the impedance at the feed point.
  • the dimensioning is done experimentally.
  • the dimensions are also determined from the distance to the edge of the calotte in the case of a spherical design of the mass reference surface.
  • Figure 2 shows an embodiment according to the German application No. 196 14 068 mentioned above.
  • the cap is conductively connected to the mass 8 on one side, for example to the metallic roof edge above the motor vehicle rear window 9.
  • the dimensions of the spherical cap are reduced to a quarter of the dimensions of the ground reference surface 3 according to FIG. 1, and apart from the level differences mentioned in the longitudinal axis of the vehicle, no impairments of the antenna parameters can be found compared to the antenna according to FIG.
  • the new antenna consists of two sub-areas 10 and 11, each of which is connected to the ground reference area 3 via a separate web 12, 13 - as short-circuit connections.
  • the width of the gap 14 in the variant in FIGS. 3a and b is selected such that the gap is not recognized as such by the field corresponding to the operating frequency and that there is a continuous area for this field.
  • the same result is achieved by overlapping the partial areas 10, 11, which is shown in FIG. 3c.
  • the antenna parameters can be influenced further by varying the width of the gap 14 and the dimensions A and B of the overlap and, moreover, the relative dielectric constant of the dielectric in the overlap region.
  • the sections 15 attached to the partial surface 11 serve, by varying the dimensions C and D, for precise adaptation to the cable impedance.
  • FIG. 4 again takes up the subject of flat antennas with reduced dimensions of the ground reference area in combination with an antenna for another frequency range.
  • a flat antenna according to the invention for radio operation for example in the 900 MHz range, is combined with an antenna 16 for satellite-based vehicle navigation (GPS).
  • GPS satellite-based vehicle navigation
  • the web 12 forming the short-circuit connection of the partial surface 10 connects to the partial surface at an extremely obtuse angle, so that the larger ground surface which is favorable for the function of the patch antenna 16 was obtained in a simple manner.
  • This arrangement is also suitable for positioning below a cover or a flat construction element made of a dielectric material, whether it is a vehicle window 9 or a roof or hood made of a plastic material.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Waveguide Aerials (AREA)
EP97118934A 1996-11-08 1997-10-30 Antenne plate Expired - Lifetime EP0841715B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19646100 1996-11-08
DE19646100A DE19646100A1 (de) 1996-11-08 1996-11-08 Flachantenne

Publications (3)

Publication Number Publication Date
EP0841715A2 true EP0841715A2 (fr) 1998-05-13
EP0841715A3 EP0841715A3 (fr) 2000-04-26
EP0841715B1 EP0841715B1 (fr) 2005-03-16

Family

ID=7811040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97118934A Expired - Lifetime EP0841715B1 (fr) 1996-11-08 1997-10-30 Antenne plate

Country Status (3)

Country Link
US (1) US5929812A (fr)
EP (1) EP0841715B1 (fr)
DE (2) DE19646100A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031825A1 (fr) * 1998-11-20 2000-06-02 Smarteq Wireless Ab Dispositif antenne
GB2347792A (en) * 1999-03-10 2000-09-13 Andrew Jesman Antenna
WO2000057511A1 (fr) * 1999-03-24 2000-09-28 Siemens Aktiengesellschaft Antenne multibande

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19828122A1 (de) * 1998-06-25 1999-12-30 Fuba Automotive Gmbh Antennen aus flächigen Elementen
CA2364445A1 (fr) * 1999-03-05 2000-09-14 Katrin A Flotti Jacobsen Systeme d'antenne a microbandes pour dispositif ce communication
DE19922699C2 (de) * 1999-05-18 2001-05-17 Hirschmann Electronics Gmbh Antenne mit wenigstens einem Vertikalstrahler
US6211831B1 (en) * 1999-06-24 2001-04-03 Delphi Technologies, Inc. Capacitive grounding system for VHF and UHF antennas
WO2001028035A1 (fr) 1999-10-12 2001-04-19 Arc Wireless Solutions, Inc. Antenne microruban a bande etroite duale compacte
SE517564C2 (sv) * 1999-11-17 2002-06-18 Allgon Ab Antennanordning för en bärbar radiokommunikationsanordning, bärbar radiokommunikationsanordning med sådan antennanordning och metod för att driva nämnda radiokommunikationsanordning
SE516474C2 (sv) 1999-11-19 2002-01-22 Allgon Ab Antennanordning och kommunikationsanordning innefattande en sådan antennanordning
DE19957865A1 (de) * 1999-12-01 2001-06-07 Volkswagen Ag Antennenanordnung für ein Fahrzeug
WO2001048858A2 (fr) 1999-12-14 2001-07-05 Rangestar Wireless, Inc. Ensemble antenne a large bande a faible taux d'absorption specifique (das)
US6518933B2 (en) 2001-05-30 2003-02-11 Ads Corporation Low profile antenna
GB2392563B (en) * 2002-08-30 2004-11-03 Motorola Inc Antenna structures and their use in wireless communication devices
DE102006039357B4 (de) * 2005-09-12 2018-06-28 Heinz Lindenmeier Antennendiversityanlage zum Funkempfang für Fahrzeuge
RU2497246C2 (ru) * 2006-02-22 2013-10-27 МедиаТек Инк. Антенное устройство и использующее его мобильное устройство связи
US20080055045A1 (en) * 2006-08-31 2008-03-06 3M Innovative Properties Company Rfid tag including a three-dimensional antenna
DE102007017478A1 (de) * 2007-04-13 2008-10-16 Lindenmeier, Heinz, Prof. Dr. Ing. Empfangsanlage mit einer Schaltungsanordnung zur Unterdrückung von Umschaltstörungen bei Antennendiversity
EP2037593A3 (fr) * 2007-07-10 2016-10-12 Delphi Delco Electronics Europe GmbH Installation de diversité d'antennes pour la réception radio à bande relativement large dans des véhicules
DE102007039914A1 (de) * 2007-08-01 2009-02-05 Lindenmeier, Heinz, Prof. Dr. Ing. Antennendiversityanlage mit zwei Antennen für den Funkempfang in Fahrzeugen
DE102008003532A1 (de) * 2007-09-06 2009-03-12 Lindenmeier, Heinz, Prof. Dr. Ing. Antenne für den Satellitenempfang
US20090085750A1 (en) * 2007-09-27 2009-04-02 3M Innovative Properties Company Extended RFID tag
US8289163B2 (en) * 2007-09-27 2012-10-16 3M Innovative Properties Company Signal line structure for a radio-frequency identification system
US8717244B2 (en) 2007-10-11 2014-05-06 3M Innovative Properties Company RFID tag with a modified dipole antenna
US8085203B1 (en) 2008-04-18 2011-12-27 Aero Antenna Inc. Ground surrounded non-resonant slot-like patch antenna
PT2209221T (pt) * 2009-01-19 2018-12-27 Fuba Automotive Electronics Gmbh Sistema de recepção para a soma de sinais de antena em fase
DE102009011542A1 (de) * 2009-03-03 2010-09-09 Heinz Prof. Dr.-Ing. Lindenmeier Antenne für den Empfang zirkular in einer Drehrichtung der Polarisation ausgestrahlter Satellitenfunksignale
DE102009023514A1 (de) * 2009-05-30 2010-12-02 Heinz Prof. Dr.-Ing. Lindenmeier Antenne für zirkulare Polarisation mit einer leitenden Grundfläche
WO2018101104A1 (fr) * 2016-11-29 2018-06-07 株式会社村田製作所 Dispositif d'antenne

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0659009B2 (ja) * 1988-03-10 1994-08-03 株式会社豊田中央研究所 移動体用アンテナ
US5121127A (en) * 1988-09-30 1992-06-09 Sony Corporation Microstrip antenna
JP2537390B2 (ja) * 1988-12-23 1996-09-25 原田工業株式会社 プレ―ンアンテナ
US5291210A (en) * 1988-12-27 1994-03-01 Harada Kogyo Kabushiki Kaisha Flat-plate antenna with strip line resonator having capacitance for impedance matching the feeder
JPH02308604A (ja) * 1989-05-23 1990-12-21 Harada Ind Co Ltd 移動通信用平板アンテナ
JP2712931B2 (ja) * 1991-09-30 1998-02-16 三菱電機株式会社 アンテナ装置
US5402136A (en) * 1991-10-04 1995-03-28 Naohisa Goto Combined capacitive loaded monopole and notch array with slits for multiple resonance and impedance matching pins
US5355142A (en) * 1991-10-15 1994-10-11 Ball Corporation Microstrip antenna structure suitable for use in mobile radio communications and method for making same
WO1994003940A1 (fr) * 1992-08-07 1994-02-17 Deltec New Zealand Limited Dipole
DE19504577A1 (de) * 1995-02-11 1996-08-14 Fuba Automotive Gmbh Flachantenne
JPH08250917A (ja) * 1995-03-09 1996-09-27 Matsushita Electric Ind Co Ltd 無線機用アンテナ
DE59501555D1 (de) * 1995-04-20 1998-04-09 Fuba Automotive Gmbh Flachantennen-Anordnung
DE29606475U1 (de) * 1996-04-09 1996-06-27 FUBA Automotive GmbH, 31162 Bad Salzdetfurth Flachantenne

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031825A1 (fr) * 1998-11-20 2000-06-02 Smarteq Wireless Ab Dispositif antenne
US6222497B1 (en) 1998-11-20 2001-04-24 Smarteq Wireless Ab Antenna device
DE19983744B4 (de) 1998-11-20 2019-07-18 Smarteq Wireless Ab Antennenvorrichtung
GB2347792A (en) * 1999-03-10 2000-09-13 Andrew Jesman Antenna
GB2347792B (en) * 1999-03-10 2001-06-06 Andrew Jesman Antenna
WO2000057511A1 (fr) * 1999-03-24 2000-09-28 Siemens Aktiengesellschaft Antenne multibande

Also Published As

Publication number Publication date
EP0841715A3 (fr) 2000-04-26
DE59712229D1 (de) 2005-04-21
US5929812A (en) 1999-07-27
DE19646100A1 (de) 1998-05-14
EP0841715B1 (fr) 2005-03-16

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