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FR1213871A - Improvements to microwave antennas - Google Patents

Improvements to microwave antennas

Info

Publication number
FR1213871A
FR1213871A FR1213871DA FR1213871A FR 1213871 A FR1213871 A FR 1213871A FR 1213871D A FR1213871D A FR 1213871DA FR 1213871 A FR1213871 A FR 1213871A
Authority
FR
France
Prior art keywords
microwave antennas
antennas
microwave
Prior art date
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
Other languages
French (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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1213871A publication Critical patent/FR1213871A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/24—Polarising devices; Polarisation filters 
    • 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
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual antennas
FR1213871D 1958-10-31 1958-10-31 Improvements to microwave antennas Expired FR1213871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1213871T 1958-10-31

Publications (1)

Publication Number Publication Date
FR1213871A true FR1213871A (en) 1960-04-05

Family

ID=9676754

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1213871D Expired FR1213871A (en) 1958-10-31 1958-10-31 Improvements to microwave antennas

Country Status (1)

Country Link
FR (1) FR1213871A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257227B (en) * 1960-12-27 1967-12-28 Western Electric Co Cassegrain antenna
FR2186744A1 (en) * 1970-08-31 1974-01-11 Dassault Electronique
DE3329558A1 (en) * 1982-08-16 1984-02-16 RCA Corp., 10020 New York, N.Y. ANTENNA CONSTRUCTION

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257227B (en) * 1960-12-27 1967-12-28 Western Electric Co Cassegrain antenna
FR2186744A1 (en) * 1970-08-31 1974-01-11 Dassault Electronique
DE3329558A1 (en) * 1982-08-16 1984-02-16 RCA Corp., 10020 New York, N.Y. ANTENNA CONSTRUCTION
US4575726A (en) * 1982-08-16 1986-03-11 Rca Corporation Antenna construction including two superimposed polarized parabolic reflectors

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