CA2050832A1 - Transpondeur pour vehicule en marche - Google Patents

Transpondeur pour vehicule en marche

Info

Publication number
CA2050832A1
CA2050832A1 CA 2050832 CA2050832A CA2050832A1 CA 2050832 A1 CA2050832 A1 CA 2050832A1 CA 2050832 CA2050832 CA 2050832 CA 2050832 A CA2050832 A CA 2050832A CA 2050832 A1 CA2050832 A1 CA 2050832A1
Authority
CA
Canada
Prior art keywords
transponder
transmission line
feeder
substrate
dipole antenna
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.)
Abandoned
Application number
CA 2050832
Other languages
English (en)
Inventor
Peter Philip Blunden
David Anthony Williams
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.)
Plessey Semiconductors Ltd
Original Assignee
Peter Philip Blunden
David Anthony Williams
Marconi Electronic Devices Limited
Plessey Semiconductors Limited
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 Peter Philip Blunden, David Anthony Williams, Marconi Electronic Devices Limited, Plessey Semiconductors Limited filed Critical Peter Philip Blunden
Publication of CA2050832A1 publication Critical patent/CA2050832A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Near-Field Transmission Systems (AREA)
  • Details Of Aerials (AREA)
CA 2050832 1990-09-07 1991-09-06 Transpondeur pour vehicule en marche Abandoned CA2050832A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909019645A GB9019645D0 (en) 1990-09-07 1990-09-07 Moving vehicle transponder
GB9019645.2 1990-09-07

Publications (1)

Publication Number Publication Date
CA2050832A1 true CA2050832A1 (fr) 1992-03-08

Family

ID=10681879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2050832 Abandoned CA2050832A1 (fr) 1990-09-07 1991-09-06 Transpondeur pour vehicule en marche

Country Status (3)

Country Link
EP (1) EP0474440A3 (fr)
CA (1) CA2050832A1 (fr)
GB (2) GB9019645D0 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100603617B1 (ko) 2004-06-29 2006-07-24 한국전자통신연구원 전파식별 송수신용 안테나 및 그를 이용한 트랜스폰더
CN107278341A (zh) 2016-04-01 2017-10-20 深圳市大疆创新科技有限公司 天线、通信组件及无人飞行器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1348478A (en) * 1970-06-20 1974-03-20 Emi Ltd Aerial arrangements
US3845490A (en) * 1973-05-03 1974-10-29 Gen Electric Stripline slotted balun dipole antenna
US4068232A (en) * 1976-02-12 1978-01-10 Fairchild Industries, Inc. Passive encoding microwave transponder
US4104630A (en) * 1976-06-21 1978-08-01 Chasek Norman E Vehicle identification system, using microwaves
FR2487588A1 (fr) * 1980-07-23 1982-01-29 France Etat Doublets replies en plaques pour tres haute frequence et reseaux de tels doublets
US4816839A (en) * 1987-12-18 1989-03-28 Amtech Corporation Transponder antenna

Also Published As

Publication number Publication date
GB2249924B (en) 1994-06-15
GB2249924A (en) 1992-05-20
EP0474440A2 (fr) 1992-03-11
GB9019645D0 (en) 1990-10-24
GB9118647D0 (en) 1991-10-16
EP0474440A3 (en) 1993-07-07

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Legal Events

Date Code Title Description
FZDE Dead