GB1013917A - Radio aerial arrangement - Google Patents

Radio aerial arrangement

Info

Publication number
GB1013917A
GB1013917A GB4061962A GB4061962A GB1013917A GB 1013917 A GB1013917 A GB 1013917A GB 4061962 A GB4061962 A GB 4061962A GB 4061962 A GB4061962 A GB 4061962A GB 1013917 A GB1013917 A GB 1013917A
Authority
GB
United Kingdom
Prior art keywords
coupling
aerials
attenuation
networks
coaxial cable
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
GB4061962A
Inventor
Charles William Earp
Francis Giles Overbury
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1013917A publication Critical patent/GB1013917A/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
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
    • G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1,013,917. Radio beacons; aerials. STANDARD TELEPHONES & CABLES Ltd. Oct. 26, 1962, No. 40619/62. Headings H4A and H4D. In a Doppler V.O.R. beacon, of the kind wherein a central aerial 22 transmits a carrier wave, and upper and lower side bands of the carrier are respectively radiated from diametrically opposite aerials 16 and 17, which are switched around a circular array by commutator means 18 and 19, to produce Doppler modulation of the sideband signals at a remote location, radiative interactions between the central aerial 22 and the circular array and viceversa are counteracted by antiphase energy introduced by means of coupling networks 25/26, coupling the feed to the central aerial to the feeds to the diametrically opposing elements. The networks each comprise a variable phase shifter 25 and a variable attenuator 26, and are adjusted until the coupling path between points 27 and 28 (on 29 and 27) is equal in attenuation to, and differs in electrical length by an odd multiple of #/2 from, the coupling path 27, 16, 22, 28 (or 29, 17, 22, 28). The attenuation 26 may be of a type consuming and radiating almost no power, and comprising a pair of fixed capacitors inserted in series in the centre lead of a coaxial cable, and a variable capacitor coupling the junction of the two capacitors with the outer conductor of the coaxial cable.
GB4061962A 1961-07-28 1962-10-26 Radio aerial arrangement Expired GB1013917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2751061A GB1003317A (en) 1961-07-28 1961-07-28 Radio navigational system

Publications (1)

Publication Number Publication Date
GB1013917A true GB1013917A (en) 1965-12-22

Family

ID=10260743

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2751061A Expired GB1003317A (en) 1961-07-28 1961-07-28 Radio navigational system
GB4061962A Expired GB1013917A (en) 1961-07-28 1962-10-26 Radio aerial arrangement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2751061A Expired GB1003317A (en) 1961-07-28 1961-07-28 Radio navigational system

Country Status (3)

Country Link
CH (1) CH410072A (en)
DE (1) DE1190525B (en)
GB (2) GB1003317A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044456A1 (en) * 1980-07-19 1982-01-27 International Standard Electric Corporation Antenna system for Doppler omnidirectional range
WO1995001662A1 (en) * 1993-07-02 1995-01-12 Hazeltine Corporation Q equalization in dual-element end-fire array antennas
CN111478044A (en) * 2020-03-31 2020-07-31 Oppo广东移动通信有限公司 Antenna module and terminal

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183318A (en) * 1966-07-08 1970-03-04 Standard Telephones Cables Ltd Doppler V.O.R. Systems
FR2119826B1 (en) * 1970-12-11 1977-01-21 Thomson Csf
US6608592B2 (en) * 2002-01-18 2003-08-19 Hewlett-Packard Development Company, Lp. Location system using beacon transmitters
DE102020110348B3 (en) * 2020-04-15 2021-08-05 Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium Für Wirtschaft Und Energie, Dieses Vertreten Durch Den Präsidenten Der Physikalisch-Technischen Bundesanstalt Method for transmitting data between a base station and a mobile station and data transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044456A1 (en) * 1980-07-19 1982-01-27 International Standard Electric Corporation Antenna system for Doppler omnidirectional range
WO1995001662A1 (en) * 1993-07-02 1995-01-12 Hazeltine Corporation Q equalization in dual-element end-fire array antennas
CN111478044A (en) * 2020-03-31 2020-07-31 Oppo广东移动通信有限公司 Antenna module and terminal

Also Published As

Publication number Publication date
CH410072A (en) 1966-03-31
DE1190525B (en) 1965-04-08
GB1003317A (en) 1965-09-02

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