FR1584348A - - Google Patents

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Publication number
FR1584348A
FR1584348A FR1584348DA FR1584348A FR 1584348 A FR1584348 A FR 1584348A FR 1584348D A FR1584348D A FR 1584348DA FR 1584348 A FR1584348 A FR 1584348A
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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.)
Expired
Application number
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
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Application granted granted Critical
Publication of FR1584348A publication Critical patent/FR1584348A/fr
Expired legal-status Critical Current

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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
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
FR1584348D 1968-07-16 1968-07-16 Expired FR1584348A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR159316 1968-07-16

Publications (1)

Publication Number Publication Date
FR1584348A true FR1584348A (fr) 1969-12-19

Family

ID=8652613

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1584348D Expired FR1584348A (fr) 1968-07-16 1968-07-16

Country Status (1)

Country Link
FR (1) FR1584348A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017589A1 (fr) * 1979-04-09 1980-10-15 Thomson-Csf Antenne cassegrain montée dans un radome
DE2920781A1 (de) * 1979-05-22 1980-11-27 Siemens Ag Antennenanordnung, insbesondere cassegrain-antennenanordnung
DE2954351C2 (de) * 1979-05-22 1986-07-17 Siemens AG, 1000 Berlin und 8000 München Reflektorantenne
WO2000072403A2 (fr) * 1999-05-24 2000-11-30 Telaxis Communications Corporation Antenne a transreflecteur pour systeme de communication hertzien

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017589A1 (fr) * 1979-04-09 1980-10-15 Thomson-Csf Antenne cassegrain montée dans un radome
FR2454190A1 (fr) * 1979-04-09 1980-11-07 Thomson Csf Antenne cassegrain montee dans un radome
DE2920781A1 (de) * 1979-05-22 1980-11-27 Siemens Ag Antennenanordnung, insbesondere cassegrain-antennenanordnung
DE2954351C2 (de) * 1979-05-22 1986-07-17 Siemens AG, 1000 Berlin und 8000 München Reflektorantenne
WO2000072403A2 (fr) * 1999-05-24 2000-11-30 Telaxis Communications Corporation Antenne a transreflecteur pour systeme de communication hertzien
WO2000072403A3 (fr) * 1999-05-24 2001-04-26 Telaxis Comm Corp Antenne a transreflecteur pour systeme de communication hertzien

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Legal Events

Date Code Title Description
ST Notification of lapse