FR2098372A1 - - Google Patents

Info

Publication number
FR2098372A1
FR2098372A1 FR7125604A FR7125604A FR2098372A1 FR 2098372 A1 FR2098372 A1 FR 2098372A1 FR 7125604 A FR7125604 A FR 7125604A FR 7125604 A FR7125604 A FR 7125604A FR 2098372 A1 FR2098372 A1 FR 2098372A1
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
FR7125604A
Other languages
French (fr)
Other versions
FR2098372B1 (en
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.)
British Aircraft Corp Ltd
Original Assignee
British Aircraft Corp Ltd
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 British Aircraft Corp Ltd filed Critical British Aircraft Corp Ltd
Publication of FR2098372A1 publication Critical patent/FR2098372A1/fr
Application granted granted Critical
Publication of FR2098372B1 publication Critical patent/FR2098372B1/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
    • 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
FR7125604A 1970-07-13 1971-07-13 Expired FR2098372B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3394070 1970-07-13

Publications (2)

Publication Number Publication Date
FR2098372A1 true FR2098372A1 (en) 1972-03-10
FR2098372B1 FR2098372B1 (en) 1974-04-05

Family

ID=10359353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7125604A Expired FR2098372B1 (en) 1970-07-13 1971-07-13

Country Status (5)

Country Link
CH (1) CH529450A (en)
DE (1) DE2134797A1 (en)
FR (1) FR2098372B1 (en)
GB (1) GB1305117A (en)
NL (1) NL7109661A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522888A1 (en) * 1982-03-02 1983-09-09 Thomson Csf ANTENNA WITH DOUBLE REFLECTOR WITH POLARIZATION TRANSFORMER INCORPORATED
FR2540296A1 (en) * 1983-01-31 1984-08-03 Thomson Csf SPATIAL CIRCULAR POLARIZING ELECTROMAGNETIC WAVE FILTER AND CASSEGRAIN ANTENNA COMPRISING SUCH A FILTER

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234858A (en) * 1988-09-02 1991-02-13 Thorn Emi Electronics Ltd Cassegrain antenna
CN106025487B (en) * 2016-05-06 2019-03-26 西安恒达微波技术开发有限公司 A kind of direction-finder antenna and DF antenna system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522888A1 (en) * 1982-03-02 1983-09-09 Thomson Csf ANTENNA WITH DOUBLE REFLECTOR WITH POLARIZATION TRANSFORMER INCORPORATED
EP0088681A1 (en) * 1982-03-02 1983-09-14 Thomson-Csf Dual-reflector antenna with incorporated polarizer
FR2540296A1 (en) * 1983-01-31 1984-08-03 Thomson Csf SPATIAL CIRCULAR POLARIZING ELECTROMAGNETIC WAVE FILTER AND CASSEGRAIN ANTENNA COMPRISING SUCH A FILTER
EP0115983A2 (en) * 1983-01-31 1984-08-15 Thomson-Csf Spatial filter for circularly polarized microwaves and Cassegrain antenna using such a filter
EP0115983A3 (en) * 1983-01-31 1984-12-27 Thomson-Csf Spatial filter for circularly polarized microwaves and cassegrain antenna using such a filter
US4652891A (en) * 1983-01-31 1987-03-24 Thomson-Csf Electromagnetic wave spatial filter with circular polarization

Also Published As

Publication number Publication date
CH529450A (en) 1972-10-15
DE2134797A1 (en) 1972-01-20
FR2098372B1 (en) 1974-04-05
NL7109661A (en) 1972-01-17
GB1305117A (en) 1973-01-31

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Legal Events

Date Code Title Description
ST Notification of lapse