FR979438A - Perfectionnements aux systèmes d'antennes - Google Patents

Perfectionnements aux systèmes d'antennes

Info

Publication number
FR979438A
FR979438A FR979438DA FR979438A FR 979438 A FR979438 A FR 979438A FR 979438D A FR979438D A FR 979438DA FR 979438 A FR979438 A FR 979438A
Authority
FR
France
Prior art keywords
antenna systems
antenna
systems
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
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR979438A publication Critical patent/FR979438A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/12—Longitudinally slotted cylinder antennas; Equivalent structures
    • 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
    • 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
    • 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

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)
  • Mobile Radio Communication Systems (AREA)
  • Particle Accelerators (AREA)
FR979438D 1948-03-18 1949-01-25 Perfectionnements aux systèmes d'antennes Expired FR979438A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8165/48A GB685287A (en) 1948-03-18 1948-03-18 Improvements in or relating to radio aerial installations

Publications (1)

Publication Number Publication Date
FR979438A true FR979438A (fr) 1951-04-26

Family

ID=9847016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR979438D Expired FR979438A (fr) 1948-03-18 1949-01-25 Perfectionnements aux systèmes d'antennes

Country Status (4)

Country Link
US (1) US2601610A (fr)
DE (1) DE815052C (fr)
FR (1) FR979438A (fr)
GB (1) GB685287A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778014A (en) * 1951-10-16 1957-01-15 Gabriel Co Antenna system
US2809370A (en) * 1954-03-18 1957-10-08 Rca Victor Company Ltd Microwave scanner
US2985876A (en) * 1957-01-23 1961-05-23 Marconi Wireless Telegraph Co Aerial systems
US3040319A (en) * 1958-12-09 1962-06-19 Itt Beacon antenna system
US3094698A (en) * 1960-12-29 1963-06-18 Int Standard Electric Corp Air traffic display system
US5754143A (en) * 1996-10-29 1998-05-19 Southwest Research Institute Switch-tuned meandered-slot antenna
JP3370260B2 (ja) * 1997-08-29 2003-01-27 八洲電研株式会社 高周波信号線路
US8202270B2 (en) * 2009-02-20 2012-06-19 Vivant Medical, Inc. Leaky-wave antennas for medical applications
US8197473B2 (en) * 2009-02-20 2012-06-12 Vivant Medical, Inc. Leaky-wave antennas for medical applications
DE102014109402B4 (de) * 2014-07-04 2017-06-14 Sick Ag Sensor für eine Rollenbahn und Verfahren zum Erkennen von auf einer Rollenbahn befindlichen Objekten
US10439275B2 (en) 2016-06-24 2019-10-08 Ford Global Technologies, Llc Multiple orientation antenna for vehicle communication

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1963255A (en) * 1929-10-28 1934-06-19 Rca Corp Scanning device
US1877566A (en) * 1930-10-06 1932-09-13 Westinghouse Electric & Mfg Co Facsimile transmitter
US2075808A (en) * 1930-11-21 1937-04-06 Robert A Fliess Method and apparatus for observing bodies through opaque substances
US2460401A (en) * 1941-11-28 1949-02-01 Bell Telephone Labor Inc Directive microwave radio antenna
US2417076A (en) * 1944-05-30 1947-03-11 Bell Telephone Labor Inc High-speed camera
US2436380A (en) * 1944-09-23 1948-02-24 Bell Telephone Labor Inc Rapid sweep radiating system
US2438735A (en) * 1944-10-02 1948-03-30 Gen Electric High-frequency wave transmitting apparatus
US2480181A (en) * 1945-01-24 1949-08-30 Us Sec War Directive high-frequency antenna

Also Published As

Publication number Publication date
GB685287A (en) 1952-12-31
US2601610A (en) 1952-06-24
DE815052C (de) 1951-09-27

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