GB745038A - Improvements relating to scanning aerials - Google Patents

Improvements relating to scanning aerials

Info

Publication number
GB745038A
GB745038A GB3635953A GB3635953A GB745038A GB 745038 A GB745038 A GB 745038A GB 3635953 A GB3635953 A GB 3635953A GB 3635953 A GB3635953 A GB 3635953A GB 745038 A GB745038 A GB 745038A
Authority
GB
United Kingdom
Prior art keywords
reflector
scanning
bottom plates
plates
primary element
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
GB3635953A
Inventor
Kenneth Milne
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 Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB3635953A priority Critical patent/GB745038A/en
Publication of GB745038A publication Critical patent/GB745038A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
    • H01Q3/20—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is fixed and the reflecting device is movable
    • 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
    • H01Q19/12—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 wherein the surfaces are concave
    • H01Q19/13—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 wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/138—Parallel-plate feeds, e.g. pill-box, cheese aerials

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

745,038. Aerials. BRITISH THOMSONHOUSTON CO., Ltd. Dec. 29, 1954 [Dec. 31, 1953], No. 36359/53. Class 40 (7). A radio aerial system for sector scanning comprises a fixed primary element such as horn 1, fixed top and bottom plates 2, 3 and a reflector member 4 mounted about an axis 5 perpendicular to the top and bottom plates so that scanning can be effected by oscillating the reflector only about the axis 5. The reflector 4 is preferably parabolic and forms in effect the rear wall of a cheese-type system. Where the primary element is located along a line substantially bisecting the scanning sector (as in Fig. 1) the top and bottom plates are made substantially rectangular. In a modification (Fig. 2) the primary element is placed at one corner of plates shaped as right-angled triangles and the energy emerges from the hypotenuse side of the system. In this arrangement the element does not obstruct the reflected beam. The reflector 4 may be a solid plate #/4 thick at the edges or comprise parallel bars or plates spaced apart less than #/2 and running in a direction dependent on the polarization of the radio energy concerned.
GB3635953A 1953-12-31 1953-12-31 Improvements relating to scanning aerials Expired GB745038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3635953A GB745038A (en) 1953-12-31 1953-12-31 Improvements relating to scanning aerials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3635953A GB745038A (en) 1953-12-31 1953-12-31 Improvements relating to scanning aerials

Publications (1)

Publication Number Publication Date
GB745038A true GB745038A (en) 1956-02-15

Family

ID=10387420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3635953A Expired GB745038A (en) 1953-12-31 1953-12-31 Improvements relating to scanning aerials

Country Status (1)

Country Link
GB (1) GB745038A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044067A (en) * 1958-12-03 1962-07-10 Gen Electric Co Ltd Aerial system having variable directional properties
FR2561824A1 (en) * 1984-03-23 1985-09-27 Thomson Csf FLAT MECHANICAL FAST ANTENNA
JP2013504981A (en) * 2009-09-15 2013-02-07 イーエムエス テクノロジーズ インコーポレイテッド Mechanically steered reflector antenna
CN108682946A (en) * 2018-05-17 2018-10-19 西安电子科技大学 The highly directional angle reflector antenna of adjustable six wave beam in universe space based on super surface

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044067A (en) * 1958-12-03 1962-07-10 Gen Electric Co Ltd Aerial system having variable directional properties
FR2561824A1 (en) * 1984-03-23 1985-09-27 Thomson Csf FLAT MECHANICAL FAST ANTENNA
EP0161127A1 (en) * 1984-03-23 1985-11-13 Thomson-Csf Plane antenna with fast mechanical scan
JP2013504981A (en) * 2009-09-15 2013-02-07 イーエムエス テクノロジーズ インコーポレイテッド Mechanically steered reflector antenna
CN108682946A (en) * 2018-05-17 2018-10-19 西安电子科技大学 The highly directional angle reflector antenna of adjustable six wave beam in universe space based on super surface

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