[go: up one dir, main page]

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

Similar Documents

Publication Publication Date Title
FR2512611B1 (en) SIMULTANEOUS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNA DIRECTIVITIES
AU572757B2 (en) Combination microstrip and unipole antenna
DK5885D0 (en) ANTENNA
AU4954890A (en) Fm antenna
FR2570546B1 (en) MULTI-WIRE HELICOID ANTENNA FOR THE SIMULTANEOUS TRANSMISSION OF MULTIPLE VHF / UHF TRANSMISSION AND RECEPTION SIGNALS
GB8904302D0 (en) Microwave antenna array
IL76444A (en) Low frequency/high frequency omnidirectional antenna
GB8711271D0 (en) Microwave lens & array antenna
FR2760569B1 (en) ANTENNA FOR TRANSMITTING AND / OR RECEIVING SIGNALS WITH RECTILINEAR POLARIZATION
JPS564945A (en) Uhf simultaneous transmitting and receiving head and millimeter wave transmitter and receiver using same head and radar
GB8627719D0 (en) Waveguide doppler antenna
FR2611090B1 (en) DEAXED ANTENNA, ESPECIALLY FOR RADAR
DK231485A (en) ANTENNA
FR2602614B1 (en) TRANSMISSION ANTENNA CAPABLE OF FULLING ON MULTIPLE AXES
AU7004187A (en) Combination uhf/vhf antenna
GB8923744D0 (en) Microwave radar transmitting antenna
IT8648269A0 (en) ANTENNA ATTENUATOR ESPECIALLY FOR COLLECTIVE RECEIVING TELEVISION ANTENNAS
FR2644938B1 (en) TRANSMISSION AND RECEPTION ANTENNA FOR MICROWAVE
GB2237708B (en) Radio transmission of data
FR2616274B1 (en) ANTENNA FOR RECEIVING OR TRANSMITTING ELECTROMAGNETIC WAVES, ESPECIALLY FOR RADIO
GB2280787B (en) Radar antenna
FR2602097B1 (en) ANTENNA FOR HIGH FREQUENCY SIGNALS
FR2559623B1 (en) TRANSMISSION ANTENNA AND MINIATURE OMNIDIRECTIONAL GAIN
GB8414286D0 (en) Radio signal transmission and reception system
IT8106987V0 (en) ROTOR FOR RECEIVING AND TRANSMITTING ANTENNAS OF RADIO AND TELEVISION SIGNALS.

Legal Events

Date Code Title Description
ST Notification of lapse