IT7850115A0 - Dispositivo per far scomparire i lobi secondari di un'antenna del tipo cassegrain a rotazione di polarizzazione - Google Patents

Dispositivo per far scomparire i lobi secondari di un'antenna del tipo cassegrain a rotazione di polarizzazione

Info

Publication number
IT7850115A0
IT7850115A0 IT7850115A IT5011578A IT7850115A0 IT 7850115 A0 IT7850115 A0 IT 7850115A0 IT 7850115 A IT7850115 A IT 7850115A IT 5011578 A IT5011578 A IT 5011578A IT 7850115 A0 IT7850115 A0 IT 7850115A0
Authority
IT
Italy
Prior art keywords
disappear
make
type antenna
polarization rotation
secondary lobe
Prior art date
Application number
IT7850115A
Other languages
English (en)
Other versions
IT1105244B (it
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
Publication of IT7850115A0 publication Critical patent/IT7850115A0/it
Application granted granted Critical
Publication of IT1105244B publication Critical patent/IT1105244B/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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/195—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual antennas
IT50115/78A 1977-07-01 1978-06-30 Dispositivo per far scomparire i lobi secondari di un'antenna del tipo cassegrain a rotazione di polarizzazione IT1105244B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7720371A FR2396434A1 (fr) 1977-07-01 1977-07-01 Dispositif d'effacement des lobes secondaires d'une antenne du type " cassegrain a rotation de polarisation ", et systeme radar comportant un tel dispositif

Publications (2)

Publication Number Publication Date
IT7850115A0 true IT7850115A0 (it) 1978-06-30
IT1105244B IT1105244B (it) 1985-10-28

Family

ID=9192883

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50115/78A IT1105244B (it) 1977-07-01 1978-06-30 Dispositivo per far scomparire i lobi secondari di un'antenna del tipo cassegrain a rotazione di polarizzazione

Country Status (3)

Country Link
DE (1) DE2828807C2 (it)
FR (1) FR2396434A1 (it)
IT (1) IT1105244B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511196A1 (fr) * 1981-08-07 1983-02-11 Thomson Csf Ensemble d'antennes principale et auxiliaires a balayage electronique et radar comportant un tel ensemble
US4504835A (en) * 1982-06-15 1985-03-12 The United States Of America As Represented By The Secretary Of The Navy Low sidelobe, high efficiency mirror antenna with twist reflector
DE68913668T2 (de) * 1988-12-05 1994-06-16 Euratom Milimeterwellen-Antenne zur Erzeugung eines Strahles mit einer Gauss-Verteilung.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1316780A (fr) * 1962-02-22 1963-02-01 Marconi Wireless Telegraph Co Perfectionnements aux antennes pour radars
FR1477571A (fr) * 1966-02-25 1967-04-21 Csf Perfectionnements aux antennes à dispositif de focalisation

Also Published As

Publication number Publication date
DE2828807A1 (de) 1979-01-18
FR2396434A1 (fr) 1979-01-26
FR2396434B1 (it) 1980-01-18
IT1105244B (it) 1985-10-28
DE2828807C2 (de) 1985-09-12

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