FR2242784A1 - - Google Patents

Info

Publication number
FR2242784A1
FR2242784A1 FR7331522A FR7331522A FR2242784A1 FR 2242784 A1 FR2242784 A1 FR 2242784A1 FR 7331522 A FR7331522 A FR 7331522A FR 7331522 A FR7331522 A FR 7331522A FR 2242784 A1 FR2242784 A1 FR 2242784A1
Authority
FR
France
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.)
Granted
Application number
FR7331522A
Other versions
FR2242784B1 (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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7331522A priority Critical patent/FR2242784B1/fr
Priority to US05/501,201 priority patent/US3945016A/en
Priority to GB3767674A priority patent/GB1465659A/en
Priority to DE2441638A priority patent/DE2441638C3/de
Priority to IT52804/74A priority patent/IT1019159B/it
Priority to NO743122A priority patent/NO138072C/no
Priority to SE7411047A priority patent/SE403218B/xx
Publication of FR2242784A1 publication Critical patent/FR2242784A1/fr
Application granted granted Critical
Publication of FR2242784B1 publication Critical patent/FR2242784B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas
FR7331522A 1973-08-31 1973-08-31 Expired FR2242784B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7331522A FR2242784B1 (fr) 1973-08-31 1973-08-31
US05/501,201 US3945016A (en) 1973-08-31 1974-08-28 Wide-band spiral antenna
GB3767674A GB1465659A (en) 1973-08-31 1974-08-28 Wide-band spiral antenna
DE2441638A DE2441638C3 (de) 1973-08-31 1974-08-30 Breitbandantenne mit einer in der Nähe eines Reflektors angeordneten Spirale
IT52804/74A IT1019159B (it) 1973-08-31 1974-08-30 Antenna a spirale piana
NO743122A NO138072C (no) 1973-08-31 1974-08-30 Bredbaandsspiralantenne.
SE7411047A SE403218B (sv) 1973-08-31 1974-08-30 Bredbandsspiralantenn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7331522A FR2242784B1 (fr) 1973-08-31 1973-08-31

Publications (2)

Publication Number Publication Date
FR2242784A1 true FR2242784A1 (fr) 1975-03-28
FR2242784B1 FR2242784B1 (fr) 1977-05-13

Family

ID=9124494

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331522A Expired FR2242784B1 (fr) 1973-08-31 1973-08-31

Country Status (7)

Country Link
US (1) US3945016A (fr)
DE (1) DE2441638C3 (fr)
FR (1) FR2242784B1 (fr)
GB (1) GB1465659A (fr)
IT (1) IT1019159B (fr)
NO (1) NO138072C (fr)
SE (1) SE403218B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558307A1 (fr) * 1984-01-13 1985-07-19 Thomson Csf Dispositif d'excitation d'un guide d'onde en mode circulaire et aerien comportant un tel dispositif

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085406A (en) * 1976-10-22 1978-04-18 International Business Machines Corporation Spiral antenna absorber system
DE3134081A1 (de) * 1981-08-28 1983-03-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spiralantenne
DE3527651A1 (de) * 1985-08-01 1987-02-12 Deutsche Forsch Luft Raumfahrt Zusatzeinrichtung fuer eine antenne in form eines einzelstrahlers
FR2598036B1 (fr) * 1986-04-23 1988-08-12 France Etat Antenne plaque a doubles polarisations croisees
FR2729791B1 (fr) * 1988-06-14 1997-05-16 Thomson Csf Dispositif pour diminuer l'effet de radome avec une antenne large bande a rayonnement de surface, et diminuer la surface equivalente refelchissante de l'ensemble
JPH02189008A (ja) * 1989-01-18 1990-07-25 Hisamatsu Nakano 円偏波アンテナ装置
DE3908893A1 (de) * 1989-03-17 1990-09-20 Siemens Ag Ringstrahler in gedruckter schaltungstechnik
JP2863727B2 (ja) * 1996-03-08 1999-03-03 日本アンテナ株式会社 単線スパイラルアンテナ
RU2747754C1 (ru) * 2020-08-10 2021-05-13 Акционерное общество "Центральное конструкторское бюро автоматики" Спиральная антенна

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919442A (en) * 1955-12-09 1959-12-29 American Electronics Antenna
US3745585A (en) * 1972-03-29 1973-07-10 Gte Sylvania Inc Broadband plane antenna with log-periodic reflectors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558307A1 (fr) * 1984-01-13 1985-07-19 Thomson Csf Dispositif d'excitation d'un guide d'onde en mode circulaire et aerien comportant un tel dispositif
EP0149400A2 (fr) * 1984-01-13 1985-07-24 Thomson-Csf Aérien comportant un dispositif d'excitation en mode circulaire
EP0149400A3 (en) * 1984-01-13 1985-08-14 Thomson-Csf Aerial with a circular-mode promotion system

Also Published As

Publication number Publication date
NO138072B (no) 1978-03-13
NO138072C (no) 1978-06-21
DE2441638C3 (de) 1979-08-02
NO743122L (fr) 1975-03-24
DE2441638B2 (de) 1978-11-30
DE2441638A1 (de) 1975-03-13
US3945016A (en) 1976-03-16
GB1465659A (en) 1977-02-23
SE7411047L (fr) 1975-03-03
FR2242784B1 (fr) 1977-05-13
IT1019159B (it) 1977-11-10
SE403218B (sv) 1978-07-31

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse