GB1253434A - Miniature antenna for beacons - Google Patents

Miniature antenna for beacons

Info

Publication number
GB1253434A
GB1253434A GB36988/69A GB3698869A GB1253434A GB 1253434 A GB1253434 A GB 1253434A GB 36988/69 A GB36988/69 A GB 36988/69A GB 3698869 A GB3698869 A GB 3698869A GB 1253434 A GB1253434 A GB 1253434A
Authority
GB
United Kingdom
Prior art keywords
motor
monopole
plate
conductor
hollow
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
GB36988/69A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1253434A publication Critical patent/GB1253434A/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
    • H01Q3/14—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 the relative position of primary active element and a refracting or diffracting device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

1,253,434. Aerials. INTERNATIONAL STANDARD ELECTRIC CORP. 23 July, 1969 [31 July, 1968], No. 36988/69. Heading H4A. An aerial system consists of a hollow monopole 9, Fig. 1, inside which is a motor 10, and a member 11 mounted outside said monopole, and carrying parasitic elements, which is rotatable by said motor. As described, the monopole 9 is cylindrical and is mounted above a ground plane 15 by means of a dielectric spacer 3. The end of the monopole is closed by a plate 8 and it is fed by a coaxial line having a hollow inner conductor 6, an outer conductor 7, and an end terminating plate 2. An R.F. connector 4 is located at a distance from the plate 2 equal to a quarter wavelength at the mid-operating frequency. Connecting wires 5 to the motor 10 are run inside the hollow conductor 6. Said motor has an upwardly projecting shaft 14 coupled via a plate 12 to the member 11, which is a dielectric cylinder and which carries reflectors 16 and directors 17. A ring conductor 13 connects the reflectors 16 together and provides capacitive coupling to the ground plane 15. The aerial system develops a rotating cardioid radiation pattern, and it may be made of small size so that it is suitable, for example, for installation on an aircraft. A generating section may be incorporated with the motor 10, to provide signals indicative of the angular position of the shaft 14.
GB36988/69A 1968-07-31 1969-07-23 Miniature antenna for beacons Expired GB1253434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74915068A 1968-07-31 1968-07-31

Publications (1)

Publication Number Publication Date
GB1253434A true GB1253434A (en) 1971-11-10

Family

ID=25012486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36988/69A Expired GB1253434A (en) 1968-07-31 1969-07-23 Miniature antenna for beacons

Country Status (3)

Country Link
US (1) US3541562A (en)
CH (1) CH499211A (en)
GB (1) GB1253434A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260992A (en) * 1979-12-06 1981-04-07 Rockwell International Corporation Radio navigation antenna system for aircraft
US4574258A (en) * 1984-08-27 1986-03-04 M/A-Com, Inc. Polarized signal receiving apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054107A (en) * 1959-08-28 1962-09-11 Itt Wide band omnidirectional beacon antenna
US3191177A (en) * 1961-05-24 1965-06-22 Lear Siegler Inc Direction finding antenna

Also Published As

Publication number Publication date
CH499211A (en) 1970-11-15
US3541562A (en) 1970-11-17

Similar Documents

Publication Publication Date Title
GB680512A (en) Antenna assembly
GB1446999A (en) Radio antenna systems
GB842063A (en) Omnidirectional beacon antenna
GB664330A (en) Improvements in antenna systems
GB1188403A (en) Improvements in or relating to Secondary Radar Installations
GB1338753A (en) Multimode antenna
US2726389A (en) Antenna unit
US2480186A (en) Antenna
GB1253434A (en) Miniature antenna for beacons
GB874656A (en) Improvements in or relating to cross polarized dual feeds
GB1163156A (en) Improvements in or relating to Paraboloidal Antennae with Counter-Reflectors.
GB1105354A (en) Improvements in radio antennas
GB773297A (en) Suppression of vertically polarized radiation from an omni-directional range antenna system
GB1106824A (en) Antenna system, such as for use on space craft and the like
US3054106A (en) Directional beacon antenna
US2889552A (en) Antenna unit
GB1387679A (en) Antenna
GB990032A (en) Omnidirectional beacon antenna
GB753565A (en) Improvements in or relating to antennae
GB1076233A (en) Broad band antenna
GB1004049A (en) Improvements in or relating to antenna arrangements
GB840149A (en) Omnidirectional beacon antenna
GB631324A (en) Improvements in antenna system
GB613535A (en) Directional radio antenna
GB1350549A (en) Ground antenna for instrument landing systems