GB8928589D0 - Microstrip antenna - Google Patents

Microstrip antenna

Info

Publication number
GB8928589D0
GB8928589D0 GB898928589A GB8928589A GB8928589D0 GB 8928589 D0 GB8928589 D0 GB 8928589D0 GB 898928589 A GB898928589 A GB 898928589A GB 8928589 A GB8928589 A GB 8928589A GB 8928589 D0 GB8928589 D0 GB 8928589D0
Authority
GB
United Kingdom
Prior art keywords
elements
feed means
microstrip antenna
coupled
manner
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.)
Pending
Application number
GB898928589A
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.)
UK Secretary of State for Defence
EMI Group Electronics Ltd
Original Assignee
Thorn EMI Electronics Ltd
UK Secretary of State for Defence
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 Thorn EMI Electronics Ltd, UK Secretary of State for Defence filed Critical Thorn EMI Electronics Ltd
Priority to GB898928589A priority Critical patent/GB8928589D0/en
Publication of GB8928589D0 publication Critical patent/GB8928589D0/en
Priority to EP90313290A priority patent/EP0434268B1/en
Priority to DE69016972T priority patent/DE69016972D1/en
Priority to AT90313290T priority patent/ATE118655T1/en
Pending legal-status Critical Current

Links

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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0075—Stripline fed arrays
    • 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

Abstract

The invention relates to a microstrip antenna (2) for radiating or receiving circularly polarised radiation. The antenna (2) includes an array of radiation elements (4), a first feed means (12) coupled to the elements (4) in a manner for effecting circular polarisation in a first sense of signals afforded to the elements (4), and further feed means (14) arranged in a non-overlapping relationship with respect to the first feed means (12) and coupled to the elements (4) in a manner for effecting circular polarisation in the opposite sense of signals afforded to the elements (4). <IMAGE>
GB898928589A 1989-12-19 1989-12-19 Microstrip antenna Pending GB8928589D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB898928589A GB8928589D0 (en) 1989-12-19 1989-12-19 Microstrip antenna
EP90313290A EP0434268B1 (en) 1989-12-19 1990-12-07 Microstrip antenna
DE69016972T DE69016972D1 (en) 1989-12-19 1990-12-07 Microstrip antenna.
AT90313290T ATE118655T1 (en) 1989-12-19 1990-12-07 MICRO-STRIP ANTENNA.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898928589A GB8928589D0 (en) 1989-12-19 1989-12-19 Microstrip antenna

Publications (1)

Publication Number Publication Date
GB8928589D0 true GB8928589D0 (en) 1990-02-21

Family

ID=10668137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB898928589A Pending GB8928589D0 (en) 1989-12-19 1989-12-19 Microstrip antenna

Country Status (4)

Country Link
EP (1) EP0434268B1 (en)
AT (1) ATE118655T1 (en)
DE (1) DE69016972D1 (en)
GB (1) GB8928589D0 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69222464T2 (en) * 1991-05-30 1998-02-26 Toshiba Kawasaki Kk Microstrip antenna
SE513711C2 (en) * 1996-01-30 2000-10-23 Ericsson Telefon Ab L M Device at antenna units
DE69702510T2 (en) * 1996-04-03 2001-03-08 Johan Granholm DUAL POLARIZATION GROUP ANTENNA WITH VERY LOW CROSS-POLARIZATION AND SMALL SIDE LOBS
KR20060035942A (en) * 2004-10-21 2006-04-27 한국전자통신연구원 Circularly polarized patch antenna using metal patch and tx/rx array antenna using it
US7420512B2 (en) 2005-08-02 2008-09-02 M/A-Com, Inc. Antenna system
ATE551753T1 (en) * 2008-02-04 2012-04-15 Commw Scient Ind Res Org CIRCULAR POLARIZED GROUP ANTENNA
CN104282997B (en) * 2013-10-23 2017-06-16 林伟 Efficient antenna array means
CN104283003B (en) * 2013-10-24 2017-05-24 林伟 Efficient transmitting-receiving antenna array device
WO2020162905A1 (en) * 2019-02-06 2020-08-13 Sony Corporation Systems and devices for mutual directive beam switch array
CN110034398A (en) * 2019-05-06 2019-07-19 广州安的电子科技有限公司 Antenna structure and security door
EP4285438A1 (en) * 2021-01-27 2023-12-06 Analog Devices International Unlimited Company Circularly-polarized antennas with wide scanning ranges
US11831088B1 (en) * 2023-07-19 2023-11-28 The Florida International University Board Of Trustees Dual-band antenna systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189080B (en) * 1986-04-02 1989-11-29 Thorn Emi Electronics Ltd Microstrip antenna
FR2636780B1 (en) * 1988-09-21 1991-02-15 Europ Agence Spatiale DIPLEXED COMPOSITE ANTENNA WITH CIRCULAR POLARIZATION

Also Published As

Publication number Publication date
EP0434268B1 (en) 1995-02-15
ATE118655T1 (en) 1995-03-15
EP0434268A2 (en) 1991-06-26
DE69016972D1 (en) 1995-03-23
EP0434268A3 (en) 1991-08-21

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