FR2312864A1 - Composite construction antennae using carbon fibres - has high mechanical strength and gain particularly for transmitters and vehicles - Google Patents

Composite construction antennae using carbon fibres - has high mechanical strength and gain particularly for transmitters and vehicles

Info

Publication number
FR2312864A1
FR2312864A1 FR7516786A FR7516786A FR2312864A1 FR 2312864 A1 FR2312864 A1 FR 2312864A1 FR 7516786 A FR7516786 A FR 7516786A FR 7516786 A FR7516786 A FR 7516786A FR 2312864 A1 FR2312864 A1 FR 2312864A1
Authority
FR
France
Prior art keywords
antennae
carbon fibres
vehicles
mechanical strength
high mechanical
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.)
Withdrawn
Application number
FR7516786A
Other languages
French (fr)
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.)
ETUD RECH CHIMIQUE LAB
Original Assignee
ETUD RECH CHIMIQUE LAB
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 ETUD RECH CHIMIQUE LAB filed Critical ETUD RECH CHIMIQUE LAB
Priority to FR7516786A priority Critical patent/FR2312864A1/en
Publication of FR2312864A1 publication Critical patent/FR2312864A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
    • H01Q1/368—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor using carbon or carbon composite
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

Landscapes

  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

Radio antennae are particularly intended for transmitting purposes and for fitting to vehicles, based on the use of carbon fibres laid in a resin. The design is intended to provide an efficiency some three times greater than that obtained from purely metallic antennae together with high mechanical strength. The design, equally applicable to whip, tubular, conical and aerodynamically shaped antennae requires that 10 micron diameter carbon fibres are laid lengthways in a resin (1) and are mutually capacitively coupled. Excitation is by one or more metallic elements (2a) connected to the transmitter and receiver their length being not greater than half the length of the carbon fibre used.
FR7516786A 1975-05-29 1975-05-29 Composite construction antennae using carbon fibres - has high mechanical strength and gain particularly for transmitters and vehicles Withdrawn FR2312864A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7516786A FR2312864A1 (en) 1975-05-29 1975-05-29 Composite construction antennae using carbon fibres - has high mechanical strength and gain particularly for transmitters and vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7516786A FR2312864A1 (en) 1975-05-29 1975-05-29 Composite construction antennae using carbon fibres - has high mechanical strength and gain particularly for transmitters and vehicles

Publications (1)

Publication Number Publication Date
FR2312864A1 true FR2312864A1 (en) 1976-12-24

Family

ID=9155835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516786A Withdrawn FR2312864A1 (en) 1975-05-29 1975-05-29 Composite construction antennae using carbon fibres - has high mechanical strength and gain particularly for transmitters and vehicles

Country Status (1)

Country Link
FR (1) FR2312864A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246217A (en) * 1978-10-30 1981-01-20 Acushnet Company Conductive rubber antennas having improved physical and electrical properties
EP0040674A1 (en) * 1980-05-27 1981-12-02 Kathrein-Werke Kg Whip antenna
EP0118239A2 (en) * 1983-02-24 1984-09-12 Westland Group plc Carbon fibre structures
FR2559962A1 (en) * 1984-02-17 1985-08-23 Billard Josette Antenna for receiving electromagnetic waves
WO1991003847A1 (en) * 1989-08-29 1991-03-21 Hughes Aircraft Company Graphite composite structures exhibiting electrical conductivity
FR2660116A1 (en) * 1990-03-26 1991-09-27 Facon Antenna for receiving radio frequency waves
EP0646274A1 (en) * 1992-06-15 1995-04-05 MATTHEWS, Robert Lenes Telescopic antenna
EP0777297A1 (en) * 1995-11-28 1997-06-04 Top Glass S.p.A. A whip antenna
WO2011100774A1 (en) * 2010-02-22 2011-08-25 Christoph Kienmayer Antenna
EP3195407A1 (en) * 2014-08-29 2017-07-26 The Secretary of State for Defence Radio with a deployable antenna

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246217A (en) * 1978-10-30 1981-01-20 Acushnet Company Conductive rubber antennas having improved physical and electrical properties
EP0040674A1 (en) * 1980-05-27 1981-12-02 Kathrein-Werke Kg Whip antenna
EP0118239A2 (en) * 1983-02-24 1984-09-12 Westland Group plc Carbon fibre structures
EP0118239A3 (en) * 1983-02-24 1986-01-15 Westland Plc Carbon fibre structures
FR2559962A1 (en) * 1984-02-17 1985-08-23 Billard Josette Antenna for receiving electromagnetic waves
WO1991003847A1 (en) * 1989-08-29 1991-03-21 Hughes Aircraft Company Graphite composite structures exhibiting electrical conductivity
FR2660116A1 (en) * 1990-03-26 1991-09-27 Facon Antenna for receiving radio frequency waves
EP0646274A1 (en) * 1992-06-15 1995-04-05 MATTHEWS, Robert Lenes Telescopic antenna
EP0646274A4 (en) * 1992-06-15 1997-04-02 Robert Lenes Matthews Telescopic antenna.
EP0777297A1 (en) * 1995-11-28 1997-06-04 Top Glass S.p.A. A whip antenna
WO2011100774A1 (en) * 2010-02-22 2011-08-25 Christoph Kienmayer Antenna
EP3195407A1 (en) * 2014-08-29 2017-07-26 The Secretary of State for Defence Radio with a deployable antenna

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Legal Events

Date Code Title Description
ST Notification of lapse