IT1019159B - Antenna a spirale piana - Google Patents

Antenna a spirale piana

Info

Publication number
IT1019159B
IT1019159B IT52804/74A IT5280474A IT1019159B IT 1019159 B IT1019159 B IT 1019159B IT 52804/74 A IT52804/74 A IT 52804/74A IT 5280474 A IT5280474 A IT 5280474A IT 1019159 B IT1019159 B IT 1019159B
Authority
IT
Italy
Prior art keywords
spiral antenna
flat spiral
flat
antenna
spiral
Prior art date
Application number
IT52804/74A
Other languages
English (en)
Original Assignee
Thomson Csf
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 filed Critical Thomson Csf
Application granted granted Critical
Publication of IT1019159B publication Critical patent/IT1019159B/it

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
IT52804/74A 1973-08-31 1974-08-30 Antenna a spirale piana IT1019159B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT1019159B true IT1019159B (it) 1977-11-10

Family

ID=9124494

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52804/74A IT1019159B (it) 1973-08-31 1974-08-30 Antenna a spirale piana

Country Status (7)

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

Families Citing this family (10)

* 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
FR2558307B1 (fr) * 1984-01-13 1988-01-22 Thomson Csf Dispositif d'excitation d'un guide d'onde en mode circulaire et aerien comportant un tel dispositif
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

Also Published As

Publication number Publication date
US3945016A (en) 1976-03-16
SE7411047L (it) 1975-03-03
NO743122L (it) 1975-03-24
NO138072C (no) 1978-06-21
DE2441638C3 (de) 1979-08-02
DE2441638A1 (de) 1975-03-13
FR2242784B1 (it) 1977-05-13
GB1465659A (en) 1977-02-23
SE403218B (sv) 1978-07-31
FR2242784A1 (it) 1975-03-28
DE2441638B2 (de) 1978-11-30
NO138072B (no) 1978-03-13

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