EP0766342A1 - Antennenelement für Ultrahochfrequenz - Google Patents

Antennenelement für Ultrahochfrequenz Download PDF

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Publication number
EP0766342A1
EP0766342A1 EP96402027A EP96402027A EP0766342A1 EP 0766342 A1 EP0766342 A1 EP 0766342A1 EP 96402027 A EP96402027 A EP 96402027A EP 96402027 A EP96402027 A EP 96402027A EP 0766342 A1 EP0766342 A1 EP 0766342A1
Authority
EP
European Patent Office
Prior art keywords
substrate
ground plane
armature
antenna
antenna element
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Withdrawn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
EP96402027A
Other languages
English (en)
French (fr)
Inventor
Jean-Patrick Lefèvre
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.)
Compagnie Generale dAutomatisme CGA HBS SA
Original Assignee
Compagnie Generale dAutomatisme CGA HBS SA
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 Compagnie Generale dAutomatisme CGA HBS SA filed Critical Compagnie Generale dAutomatisme CGA HBS SA
Publication of EP0766342A1 publication Critical patent/EP0766342A1/de
Withdrawn legal-status Critical Current

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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
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • H01Q9/0435—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave using two feed points
    • 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

Definitions

  • the present invention relates to a microwave antenna element.
  • One envisaged application is electronic toll collection.
  • the invention relates to the types of antennas comprising a dielectric substrate of which one of the surfaces bears, printed, a ground plane and whose other surface carries, printed, an armature of shape adapted to the polarization of the transmission microwave vector, said armature carrying one or more antenna outputs.
  • This frame is generally called "Patch”.
  • Microwave antennas of this type are printed in class 5 on a substrate specially dedicated to microwaves of low dielectric constant, for example a glass- "teflon” substrate known as: “Duroid” or cyanate-ester.
  • a substrate specially dedicated to microwaves of low dielectric constant for example a glass- "teflon” substrate known as: “Duroid” or cyanate-ester.
  • Such substrates are expensive, three or four times the price of standard substrates in "FR4" or epoxy glass of printed circuits, without otherwise having the mechanical characteristics.
  • the object of the invention is to propose a high-performance microwave antenna element at a much lower cost, of the order of four to five times, than current microwave antennas.
  • the subject of the invention is therefore a microwave antenna element comprising a ground plane, printed on an insulating substrate, an antenna frame with at least one antenna outlet, the ground plane and the frame being separated by a dielectric, characterized in that said dielectric separating the armature from the ground plane is air, in that said armature, of form adapted to the polarization of the microwave transmission vector, is constituted by a conductive plate, said armature plate comprising at least two legs come by stamping and folding, ensuring the support of the armature on the substrate, each leg passing through, through an orifice, the substrate, at least one of the legs constituting, in addition to its support function, an antenna outlet, an absence of a ground plane surrounding said orifice for the passage of such a tab in the substrate.
  • the orifice for passage of each tab is metallized, the metallization extending as far as the edges of the orifice on the face of the substrate opposite to that carrying the ground plane to ensure fixing, by welding, from the leg to the substrate.
  • said armature plate has a square geometry and comprises three said legs, one of which is located in the center of the plate and forms a short circuit between the armature plate and the ground plane, the other two legs constituting two antenna outputs respectively located on one and the other median of the armature plate and respectively forming a phase and quadrature connection.
  • each of the two said antenna outputs is respectively connected to an output terminal fixed to an edge of said insulating substrate by a rectilinear connection in printed circuit on the surface of the substrate opposite to the ground plane, the two connections being respectively perpendicular l to one another.
  • Figure 1 shows a microwave antenna element according to the invention in top view.
  • FIG. 2 shows the same antenna element, but seen from below.
  • Figure 3 shows the antenna element in section along III-III of Figure 1.
  • the example described is a C-band microwave element (5.8 GHz) with 9 dBi gain, 60 ° to -3 dB opening angles, bandwidth> 200 mHz, in left circular polarization with X polar ⁇ 15 dB in the axis and ⁇ à10 dB to -3 dB.
  • the armature plate 3 comprises three legs a, b, c ensuring its support and stability on the substrate 2 as well as the dimension e of the dielectric 4 separating the ground plane 1 and the armature plate 3.
  • Each lug has a tail 5 passing through the substrate 2 and slightly beyond it for soldering 6.
  • the orifice for the passage of the tail 5 of the lugs a, b and c includes a metallization 7 (by printed circuit ), this metallization 7 extending as far as the edges of the orifice on the face of the substrate 2 opposite to that carrying the ground plane 1.
  • each tab comprises a wider portion 8, the height of which determines the distance e.
  • the two legs b and c in addition to their support function, provide the antenna output function.
  • the tab b provides the phase connection and the tab c the quadrature connection.
  • These legs as seen in FIG. 1 or 2, are respectively located on the median M 1 and the median M 2 of the square geometric figure of the armature plate 3.
  • a reserve 9, or absence of ground plane is provided on the substrate 2 around the legs b and c.
  • the central tab a constitutes a short circuit between the armature 3 and the ground plane 1.
  • the tab b is connected to a first output terminal 10 by a rectilinear connection 11 in printed circuit and likewise, the tab c is connected to a second output terminal 12 by a rectilinear connection 13 in printed circuit.
  • the two connections 11 and 13 are perpendicular.
  • the output terminals 10 and 12 are fixed on two consecutive sides of the substrate 2.
  • the armature plate 3 is stamped in a copper sheet, but taking into account the small thickness of the latter, the edges are reassembled, as can be seen in FIG. 3, in order to ensure the rigidity of the assembly.
  • the invention uses a stamped copper foil as a radiating element and does not require additional parts for mounting on the substrate 2.
  • the latter is a conventional printed circuit substrate made of FR4 or epoxy glass. The entire component is compatible with automatic positioning machines used during mass production.
  • the invention can be applied in a wide variety of configurations, in particular for very different frequencies and multiple associations of basic elements (antennas made up of several elementary armatures and the shape of which is adapted to the polarization of the microwave transmission vector ).
  • the armature plate 3 is a square with a side of 21.2 mm
  • the substrate 2 with the ground plane 1 has a thickness of 0.8 mm
  • the distance e is 1.8 mm
  • the height of the tail 5 is 1 mm.

Landscapes

  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
EP96402027A 1995-09-27 1996-09-25 Antennenelement für Ultrahochfrequenz Withdrawn EP0766342A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9511316A FR2739225B1 (fr) 1995-09-27 1995-09-27 Element d'antenne a hyperfrequences
FR9511316 1995-09-27

Publications (1)

Publication Number Publication Date
EP0766342A1 true EP0766342A1 (de) 1997-04-02

Family

ID=9482954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402027A Withdrawn EP0766342A1 (de) 1995-09-27 1996-09-25 Antennenelement für Ultrahochfrequenz

Country Status (6)

Country Link
US (1) US5831578A (de)
EP (1) EP0766342A1 (de)
JP (1) JPH09167915A (de)
FR (1) FR2739225B1 (de)
IL (1) IL119295A (de)
NO (1) NO319736B1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5945954A (en) * 1998-01-16 1999-08-31 Rangestar International Corporation Antenna assembly for telecommunication devices
US6326920B1 (en) 2000-03-09 2001-12-04 Avaya Technology Corp. Sheet-metal antenna
US6320546B1 (en) 2000-07-19 2001-11-20 Harris Corporation Phased array antenna with interconnect member for electrically connnecting orthogonally positioned elements used at millimeter wavelength frequencies
US6421012B1 (en) 2000-07-19 2002-07-16 Harris Corporation Phased array antenna having patch antenna elements with enhanced parasitic antenna element performance at millimeter wavelength radio frequency signals
US6266015B1 (en) 2000-07-19 2001-07-24 Harris Corporation Phased array antenna having stacked patch antenna element with single millimeter wavelength feed and microstrip quadrature-to-circular polarization circuit
US20030107881A1 (en) * 2001-12-11 2003-06-12 Ngk Insulators, Ltd. Setting construction of shield case or planar antenna on circuit board
RU2233017C1 (ru) * 2002-12-02 2004-07-20 Общество с ограниченной ответственностью "Алгоритм" Антенное устройство с управляемой диаграммой направленности и планарная направленная антенна
JP2004260786A (ja) * 2003-02-05 2004-09-16 Fujitsu Ltd アンテナ素子、平面アンテナ、配線基板及び通信装置
JP3959068B2 (ja) * 2003-11-12 2007-08-15 アルプス電気株式会社 円偏波アンテナ
JP2005159843A (ja) * 2003-11-27 2005-06-16 Alps Electric Co Ltd 円偏波型アンテナ装置
JP2005159837A (ja) * 2003-11-27 2005-06-16 Alps Electric Co Ltd アンテナ装置
JP4323440B2 (ja) * 2005-02-10 2009-09-02 アルプス電気株式会社 アンテナ装置
WO2007127948A2 (en) 2006-04-27 2007-11-08 Sirit Technologies Inc. Adjusting parameters associated with leakage signals
US8248212B2 (en) 2007-05-24 2012-08-21 Sirit Inc. Pipelining processes in a RF reader
US8427316B2 (en) 2008-03-20 2013-04-23 3M Innovative Properties Company Detecting tampered with radio frequency identification tags
US8446256B2 (en) 2008-05-19 2013-05-21 Sirit Technologies Inc. Multiplexing radio frequency signals
US8169312B2 (en) 2009-01-09 2012-05-01 Sirit Inc. Determining speeds of radio frequency tags
US8416079B2 (en) 2009-06-02 2013-04-09 3M Innovative Properties Company Switching radio frequency identification (RFID) tags
US10062025B2 (en) 2012-03-09 2018-08-28 Neology, Inc. Switchable RFID tag
KR20210001607A (ko) * 2019-06-28 2021-01-06 삼성전자주식회사 안테나 구조 및 이를 포함하는 전자 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117017A1 (de) * 1983-01-20 1984-08-29 Hazeltine Corporation Flache rundum strahlende Antenne
US4827271A (en) * 1986-11-24 1989-05-02 Mcdonnell Douglas Corporation Dual frequency microstrip patch antenna with improved feed and increased bandwidth
DE4130493A1 (de) * 1991-09-13 1993-03-18 Ant Nachrichtentech Antennenstrahler

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633262A (en) * 1982-09-27 1986-12-30 Rogers Corporation Microstrip antenna with protective casing
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
US4849765A (en) * 1988-05-02 1989-07-18 Motorola, Inc. Low-profile, printed circuit board antenna
JPH02162804A (ja) * 1988-12-16 1990-06-22 Nissan Motor Co Ltd 平板型アンテナ
JPH07249925A (ja) * 1994-03-10 1995-09-26 Murata Mfg Co Ltd アンテナ及びアンテナ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117017A1 (de) * 1983-01-20 1984-08-29 Hazeltine Corporation Flache rundum strahlende Antenne
US4827271A (en) * 1986-11-24 1989-05-02 Mcdonnell Douglas Corporation Dual frequency microstrip patch antenna with improved feed and increased bandwidth
DE4130493A1 (de) * 1991-09-13 1993-03-18 Ant Nachrichtentech Antennenstrahler

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AN ET AL.: "BROADBAND CIRCULARLY POLARISED MICROSTRIP ANTENNA IN TWO-SIDED STRUCTURE WITH COAXIAL PROBE COUPLING", ELECTRONICS LETTERS, vol. 29, no. 3, 4 February 1993 (1993-02-04), STEVENAGE GB, pages 310 - 312, XP000336810 *
GOROBETS ET AL.: "An Experimental Investigation of a Low-Profile Antenna with Circular Polarization", TELECOMMUNICATIONS AND RADIO ENGINEERING, vol. 43, no. 4, April 1988 (1988-04-01), WASHINGTON US, pages 109 - 111, XP000086496 *

Also Published As

Publication number Publication date
JPH09167915A (ja) 1997-06-24
FR2739225B1 (fr) 1997-11-14
NO964030L (no) 1997-04-01
NO319736B1 (no) 2005-09-12
IL119295A0 (en) 1996-12-05
US5831578A (en) 1998-11-03
IL119295A (en) 2000-07-16
NO964030D0 (no) 1996-09-25
FR2739225A1 (fr) 1997-03-28

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