GB1072959A - Improvements in or relating to directional aerial systems - Google Patents

Improvements in or relating to directional aerial systems

Info

Publication number
GB1072959A
GB1072959A GB24538/64A GB2453864A GB1072959A GB 1072959 A GB1072959 A GB 1072959A GB 24538/64 A GB24538/64 A GB 24538/64A GB 2453864 A GB2453864 A GB 2453864A GB 1072959 A GB1072959 A GB 1072959A
Authority
GB
United Kingdom
Prior art keywords
reflector
axis
metres
horn
hyperboloidal
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
GB24538/64A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB1072959A publication Critical patent/GB1072959A/en
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
    • H01Q19/192—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 with dual offset reflectors
    • 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
    • H01Q19/191—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 the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

1,072,959. Aerials. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 12, 1964 [June 14, 1963], No. 24538/64. Heading H4A. An aerial system comprises a main paraboloidal reflector P, Fig. 6, and an off-set hornreflector combination CR, H, the reflector of which is hyperboloidal with one focus coincident with that of the paraboloidal reflector, but with its axis at an angle to the axis thereof. Preferably, the angle between the axes of the two reflectors is 90 degrees (Fig. 7, not shown). In an embodiment, Fig. 9 (not shown), a horn (3) is cranked at (50), the two parts being at 90 degrees, and an hyperboloidal reflector (4) co-operates with a main paraboloidal reflector (2) through an aperture (6). The aerial components are carried on a frame which is rotatable about a horizontal axis (5) coinciding with a rotating joint through which the vertex of the horn is fed. The axis (5) is supported by a lattice structure (1) which can be rotated about a vertical axis by means of rollers (9) running in a circular track (8). The whole is contained within a radome (7). Dimensions for an aerial suitable for a frequency range of 4000-6000 Mc/s. are given as, main reflector diameter 20 metres, horn maximum transverse dimension 1À25 metres, hyperboloidal reflector aperture 3À25 metres.
GB24538/64A 1963-06-14 1964-06-12 Improvements in or relating to directional aerial systems Expired GB1072959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR938124A FR1368820A (en) 1963-06-14 1963-06-14 High performance aerial

Publications (1)

Publication Number Publication Date
GB1072959A true GB1072959A (en) 1967-06-21

Family

ID=8806061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24538/64A Expired GB1072959A (en) 1963-06-14 1964-06-12 Improvements in or relating to directional aerial systems

Country Status (4)

Country Link
US (1) US3332083A (en)
DE (1) DE1266363B (en)
FR (1) FR1368820A (en)
GB (1) GB1072959A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209513A1 (en) * 1982-03-16 1984-02-09 ANT Nachrichtentechnik GmbH, 7150 Backnang Eccentric Parabolic Antenna with Low Cross Polarization

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510874A (en) * 1966-07-02 1970-05-05 Mitsubishi Electric Corp Pyramidal horn reflector antenna
GB1190566A (en) * 1966-07-04 1970-05-06 Post Office Aerials
US3500419A (en) * 1966-09-09 1970-03-10 Technical Appliance Corp Dual frequency,dual polarized cassegrain antenna
NL6818798A (en) * 1968-01-02 1973-08-27
FR1569747A (en) * 1968-03-12 1969-06-06
US3550142A (en) * 1968-03-18 1970-12-22 Maremont Corp Horn reflector antenna
US3914768A (en) * 1974-01-31 1975-10-21 Bell Telephone Labor Inc Multiple-beam Cassegrainian antenna
FR2265190B1 (en) * 1974-03-19 1978-01-06 Thomson Csf
FR2385233A1 (en) * 1977-03-25 1978-10-20 Thomson Csf ANTENNA STRUCTURE WITH REFLECTORS AND ESPECIALLY EXCENTER REFLECTORS, AND ELECTROMAGNETIC DETECTION AND SPACE TELECOMMUNICATION EQUIPMENT CONTAINING SUCH A STRUCTURE
US4298877A (en) * 1979-01-26 1981-11-03 Solar Energy Technology, Inc. Offset-fed multi-beam tracking antenna system utilizing especially shaped reflector surfaces
US4638322A (en) * 1984-02-14 1987-01-20 The Boeing Company Multiple feed antenna
FR2580868B1 (en) * 1985-04-19 1988-04-08 Thomson Csf DEVICE REFLECTING THE ELECTROMAGNETIC WAVES OF A POLARIZATION AND ITS MANUFACTURING METHOD
US6094175A (en) * 1998-11-17 2000-07-25 Hughes Electronics Corporation Omni directional antenna

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577939A (en) * 1941-06-06 1946-06-06 Harry Melville Dowsett Improvements in the directive propagation of electro-magnetic waves
NL278997A (en) * 1961-07-31
US3243805A (en) * 1963-07-30 1966-03-29 Jr Ira D Smith Zenith tracking radar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209513A1 (en) * 1982-03-16 1984-02-09 ANT Nachrichtentechnik GmbH, 7150 Backnang Eccentric Parabolic Antenna with Low Cross Polarization

Also Published As

Publication number Publication date
FR1368820A (en) 1964-08-07
DE1266363B (en) 1968-04-18
US3332083A (en) 1967-07-18

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