FR2570546B1 - MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS - Google Patents

MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS

Info

Publication number
FR2570546B1
FR2570546B1 FR8414189A FR8414189A FR2570546B1 FR 2570546 B1 FR2570546 B1 FR 2570546B1 FR 8414189 A FR8414189 A FR 8414189A FR 8414189 A FR8414189 A FR 8414189A FR 2570546 B1 FR2570546 B1 FR 2570546B1
Authority
FR
France
Prior art keywords
transmission
helicoid
antenna
wire
reception signals
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.)
Expired
Application number
FR8414189A
Other languages
French (fr)
Other versions
FR2570546A1 (en
Inventor
Dennis
Leslie Brown
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.)
Agence Spatiale Europeenne
Original Assignee
Agence Spatiale Europeenne
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 Agence Spatiale Europeenne filed Critical Agence Spatiale Europeenne
Priority to FR8414189A priority Critical patent/FR2570546B1/en
Publication of FR2570546A1 publication Critical patent/FR2570546A1/en
Application granted granted Critical
Publication of FR2570546B1 publication Critical patent/FR2570546B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR8414189A 1984-09-17 1984-09-17 MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS Expired FR2570546B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8414189A FR2570546B1 (en) 1984-09-17 1984-09-17 MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8414189A FR2570546B1 (en) 1984-09-17 1984-09-17 MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS

Publications (2)

Publication Number Publication Date
FR2570546A1 FR2570546A1 (en) 1986-03-21
FR2570546B1 true FR2570546B1 (en) 1987-10-23

Family

ID=9307765

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8414189A Expired FR2570546B1 (en) 1984-09-17 1984-09-17 MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS

Country Status (1)

Country Link
FR (1) FR2570546B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271670B (en) * 1992-10-14 1996-10-16 Nokia Mobile Phones Uk Wideband antenna arrangement
GB9417450D0 (en) 1994-08-25 1994-10-19 Symmetricom Inc An antenna
EP0715369B1 (en) * 1994-12-01 1999-07-28 Indian Space Research Organisation A multiband antenna system
US5581268A (en) * 1995-08-03 1996-12-03 Globalstar L.P. Method and apparatus for increasing antenna efficiency for hand-held mobile satellite communications terminal
GB9606593D0 (en) * 1996-03-29 1996-06-05 Symmetricom Inc An antenna system
GB9813002D0 (en) 1998-06-16 1998-08-12 Symmetricom Inc An antenna
GB9828768D0 (en) 1998-12-29 1999-02-17 Symmetricom Inc An antenna
GB9902765D0 (en) 1999-02-08 1999-03-31 Symmetricom Inc An antenna
GB9912441D0 (en) 1999-05-27 1999-07-28 Symmetricon Inc An antenna
WO2007036001A1 (en) * 2005-09-30 2007-04-05 Thiss Technologies Pte Ltd Improved antenna arrangement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568205A (en) * 1968-02-12 1971-03-02 Goodyear Aerospace Corp Novel helical antenna
US4148030A (en) * 1977-06-13 1979-04-03 Rca Corporation Helical antennas

Also Published As

Publication number Publication date
FR2570546A1 (en) 1986-03-21

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Legal Events

Date Code Title Description
ST Notification of lapse