GB1490918A - Radio direction-finding receiver system - Google Patents

Radio direction-finding receiver system

Info

Publication number
GB1490918A
GB1490918A GB992575A GB992575A GB1490918A GB 1490918 A GB1490918 A GB 1490918A GB 992575 A GB992575 A GB 992575A GB 992575 A GB992575 A GB 992575A GB 1490918 A GB1490918 A GB 1490918A
Authority
GB
United Kingdom
Prior art keywords
degrees
elements
circle
switch
terminals
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
GB992575A
Other languages
English (en)
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
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1490918A publication Critical patent/GB1490918A/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
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/242—Circumferential scanning
    • 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)
GB992575A 1974-03-12 1975-03-10 Radio direction-finding receiver system Expired GB1490918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7408255A FR2264290B1 (sv) 1974-03-12 1974-03-12

Publications (1)

Publication Number Publication Date
GB1490918A true GB1490918A (en) 1977-11-02

Family

ID=9136145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB992575A Expired GB1490918A (en) 1974-03-12 1975-03-10 Radio direction-finding receiver system

Country Status (4)

Country Link
FR (1) FR2264290B1 (sv)
GB (1) GB1490918A (sv)
IT (1) IT1032250B (sv)
SU (1) SU912061A3 (sv)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951875A1 (de) * 1978-12-21 1980-07-10 Sony Corp Antennensystem
GB2132417A (en) * 1982-12-14 1984-07-04 Taiyo Musen Co Ltd Antenna device for direction finder
DE3431344A1 (de) * 1984-01-13 1985-07-25 Taiyo Musen Co. Ltd., Tokio/Tokyo Antennengeraet fuer funkpeiler
US4746867A (en) * 1984-10-17 1988-05-24 British Gas Corporation Antenna assembly for microwave reflection survey equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8426245D0 (en) * 1984-10-17 1984-11-21 British Gas Corp Microwave reflection survey equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951875A1 (de) * 1978-12-21 1980-07-10 Sony Corp Antennensystem
GB2132417A (en) * 1982-12-14 1984-07-04 Taiyo Musen Co Ltd Antenna device for direction finder
DE3431344A1 (de) * 1984-01-13 1985-07-25 Taiyo Musen Co. Ltd., Tokio/Tokyo Antennengeraet fuer funkpeiler
US4746867A (en) * 1984-10-17 1988-05-24 British Gas Corporation Antenna assembly for microwave reflection survey equipment

Also Published As

Publication number Publication date
IT1032250B (it) 1979-05-30
FR2264290A1 (sv) 1975-10-10
SU912061A3 (ru) 1982-03-07
FR2264290B1 (sv) 1979-07-06
DE2510598B2 (de) 1977-06-08
DE2510598A1 (de) 1975-09-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee