CA2030886A1 - Microstrip antenna of two-frequency separate-feeding type for circularly polarized waves - Google Patents
Microstrip antenna of two-frequency separate-feeding type for circularly polarized wavesInfo
- Publication number
- CA2030886A1 CA2030886A1 CA 2030886 CA2030886A CA2030886A1 CA 2030886 A1 CA2030886 A1 CA 2030886A1 CA 2030886 CA2030886 CA 2030886 CA 2030886 A CA2030886 A CA 2030886A CA 2030886 A1 CA2030886 A1 CA 2030886A1
- Authority
- CA
- Canada
- Prior art keywords
- circularly polarized
- microstrip antenna
- polarized waves
- ground plane
- feeding type
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
-
- 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
- H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A microstrip antenna of two-frequency separate-feeding type for circularly polarized waves is disclosed, in which four radiation conductors are disposed on a dielectric plate mounted on a conducting ground plane and each radiation conductor has its marginal portion partly short-circuited via a short-circuiting conductor to the conducting ground plane and is supplied at its feeding point with power via a feeder passing through the conducting ground plane and the dielectric plate. The four radiation conductors are composed of two pairs of radiation conductors of different sizes adjusted so that two desired frequencies can simultaneously be used for transmission and for reception, respectively, the conductors of each pair being arranged to generate a circularly polarized wave.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP307258/89 | 1989-11-27 | ||
JP30725889A JPH03166803A (en) | 1989-11-27 | 1989-11-27 | Microstrip antenna for separately feeding two-frequency circular polarized wave |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2030886A1 true CA2030886A1 (en) | 1991-05-28 |
CA2030886C CA2030886C (en) | 1998-04-14 |
Family
ID=17966941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2030886 Expired - Fee Related CA2030886C (en) | 1989-11-27 | 1990-11-26 | Microstrip antenna of two-frequency separate-feeding type for circularly polarized waves |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH03166803A (en) |
CA (1) | CA2030886C (en) |
GB (1) | GB2238665B (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4135828A1 (en) * | 1991-10-30 | 1993-05-06 | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E.V., 5300 Bonn, De | ANTENNA ARRANGEMENT |
JP3192252B2 (en) * | 1992-12-08 | 2001-07-23 | 電気興業株式会社 | Microwave power distribution circuit |
DE69529496D1 (en) * | 1994-03-08 | 2003-03-06 | Telit Mobile Terminals Spa | PORTABLE TRANSMITTER AND / OR RECEIVER |
CA2164669C (en) | 1994-12-28 | 2000-01-18 | Martin Victor Schneider | Multi-branch miniature patch antenna having polarization and share diversity |
JPH11239020A (en) * | 1997-04-18 | 1999-08-31 | Murata Mfg Co Ltd | Circular polarizing antenna and radio device using same |
US6314275B1 (en) | 1997-08-19 | 2001-11-06 | Telit Mobile Terminals, S.P.A. | Hand-held transmitting and/or receiving apparatus |
JP3252786B2 (en) * | 1998-02-24 | 2002-02-04 | 株式会社村田製作所 | Antenna device and wireless device using the same |
GB2385467B (en) * | 2002-02-19 | 2005-09-14 | Harada Ind | Integrated vehicular antenna system with selectable feedline positioning |
JP2003332840A (en) * | 2002-05-13 | 2003-11-21 | Toshiba Corp | Antenna device and radio equipment the same |
DE10231961B3 (en) * | 2002-07-15 | 2004-02-12 | Kathrein-Werke Kg | Low-profile dual or multi-band antenna, especially for motor vehicles |
JP4070645B2 (en) * | 2003-03-20 | 2008-04-02 | クラリオン株式会社 | Planar antenna |
EP1622221A1 (en) | 2004-02-11 | 2006-02-01 | Sony Deutschland GmbH | Circular polarised array antenna |
EP1564843A1 (en) * | 2004-02-11 | 2005-08-17 | Sony International (Europe) GmbH | Circular polarised array antenna |
JP2005278220A (en) * | 2005-05-20 | 2005-10-06 | Fec Inc | Antenna element for mobile communication terminal |
JP4662070B2 (en) * | 2006-11-30 | 2011-03-30 | 日本無線株式会社 | Dual frequency double orthogonal polarization waveguide slot array antenna and double orthogonal polarization communication system |
JP2009088625A (en) * | 2007-09-27 | 2009-04-23 | Dx Antenna Co Ltd | Antenna |
EP2159878A1 (en) * | 2008-08-28 | 2010-03-03 | ERA Technology Limited | Stacked patch antenna array |
US20110128201A1 (en) * | 2009-11-30 | 2011-06-02 | Electronics And Telecommunications Research Institute | Circularly polarized antenna in wireless communication system and method for manufacturing the same |
JP6083142B2 (en) * | 2012-07-25 | 2017-02-22 | 株式会社デンソーウェーブ | Antenna device |
JP2014027417A (en) * | 2012-07-25 | 2014-02-06 | Denso Wave Inc | Antenna |
CN103975485B (en) | 2013-12-02 | 2015-11-25 | 广东通宇通讯股份有限公司 | Antenna for base station feeding network |
JP2016226056A (en) * | 2016-10-04 | 2016-12-28 | 株式会社デンソーウェーブ | Antenna device |
JP6787041B2 (en) * | 2016-10-28 | 2020-11-18 | 株式会社デンソーウェーブ | antenna |
JP7118556B2 (en) * | 2018-12-27 | 2022-08-16 | アルパイン株式会社 | antenna device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2198290B (en) * | 1986-11-29 | 1990-05-09 | Stc Plc | Dual band circularly polarised antenna with hemispherical coverage |
GB2229319B (en) * | 1989-01-20 | 1993-10-20 | Antenna Products Ltd | Antenna |
-
1989
- 1989-11-27 JP JP30725889A patent/JPH03166803A/en active Pending
-
1990
- 1990-11-26 GB GB9025672A patent/GB2238665B/en not_active Expired - Fee Related
- 1990-11-26 CA CA 2030886 patent/CA2030886C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2030886C (en) | 1998-04-14 |
GB2238665B (en) | 1993-12-22 |
JPH03166803A (en) | 1991-07-18 |
GB9025672D0 (en) | 1991-01-09 |
GB2238665A (en) | 1991-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |