FR2139705A1 - - Google Patents

Info

Publication number
FR2139705A1
FR2139705A1 FR7119689A FR7119689A FR2139705A1 FR 2139705 A1 FR2139705 A1 FR 2139705A1 FR 7119689 A FR7119689 A FR 7119689A FR 7119689 A FR7119689 A FR 7119689A FR 2139705 A1 FR2139705 A1 FR 2139705A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7119689A
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
Priority to FR7119689A priority Critical patent/FR2139705A1/fr
Priority to AU42578/72A priority patent/AU4257872A/en
Priority to US00256966A priority patent/US3790942A/en
Priority to GB2555172A priority patent/GB1321968A/en
Priority to DE19722226536 priority patent/DE2226536A1/de
Publication of FR2139705A1 publication Critical patent/FR2139705A1/fr
Withdrawn legal-status Critical Current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)
FR7119689A 1971-06-01 1971-06-01 Withdrawn FR2139705A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7119689A FR2139705A1 (fr) 1971-06-01 1971-06-01
AU42578/72A AU4257872A (en) 1971-06-01 1972-05-23 Radio beacon
US00256966A US3790942A (en) 1971-06-01 1972-05-25 Radio beacon with a rotating cardioid radiation pattern in particular for use in landing grounds of secondary importance
GB2555172A GB1321968A (en) 1971-06-01 1972-05-31 Radio beacon with a rotating cardioid radiation pattern in particular for use in landing grounds of secondary importance
DE19722226536 DE2226536A1 (de) 1971-06-01 1972-05-31 Funkfeuer mit drehendem Kardioiden Diagramm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7119689A FR2139705A1 (fr) 1971-06-01 1971-06-01

Publications (1)

Publication Number Publication Date
FR2139705A1 true FR2139705A1 (fr) 1973-01-12

Family

ID=9077882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7119689A Withdrawn FR2139705A1 (fr) 1971-06-01 1971-06-01

Country Status (5)

Country Link
US (1) US3790942A (fr)
AU (1) AU4257872A (fr)
DE (1) DE2226536A1 (fr)
FR (1) FR2139705A1 (fr)
GB (1) GB1321968A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950753A (en) * 1973-12-13 1976-04-13 Chisholm John P Stepped cardioid bearing system
DE3029169C2 (de) * 1980-08-01 1982-06-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Sendeeinrichtung für ein Navigationssystem
GB2295524A (en) * 1994-11-28 1996-05-29 Northern Telecom Ltd Beamed antenna system for a cellular radio base station
US7079081B2 (en) * 2003-07-14 2006-07-18 Harris Corporation Slotted cylinder antenna
DE502006002251D1 (de) * 2006-03-23 2009-01-15 Nokia Siemens Networks Gmbh Verfahren zur Steuerung einer Funkübertragung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL62090C (fr) * 1938-06-22
US2985876A (en) * 1957-01-23 1961-05-23 Marconi Wireless Telegraph Co Aerial systems
US3560978A (en) * 1968-11-01 1971-02-02 Itt Electronically controlled antenna system

Also Published As

Publication number Publication date
US3790942A (en) 1974-02-05
DE2226536A1 (de) 1972-12-14
AU4257872A (en) 1973-11-29
GB1321968A (en) 1973-07-04

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Legal Events

Date Code Title Description
ST Notification of lapse