GB1265226A - - Google Patents

Info

Publication number
GB1265226A
GB1265226A GB1265226DA GB1265226A GB 1265226 A GB1265226 A GB 1265226A GB 1265226D A GB1265226D A GB 1265226DA GB 1265226 A GB1265226 A GB 1265226A
Authority
GB
United Kingdom
Prior art keywords
waves
signals
slots
waveguide
mode
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)
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 filed Critical
Publication of GB1265226A publication Critical patent/GB1265226A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/146—Systems for determining direction or deviation from predetermined direction by comparing linear polarisation components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/04—Multimode antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB1265226D 1968-12-13 1969-12-15 Expired GB1265226A (cg-RX-API-DMAC10.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR178238 1968-12-13

Publications (1)

Publication Number Publication Date
GB1265226A true GB1265226A (cg-RX-API-DMAC10.html) 1972-03-01

Family

ID=8658327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265226D Expired GB1265226A (cg-RX-API-DMAC10.html) 1968-12-13 1969-12-15

Country Status (3)

Country Link
US (1) US3646589A (cg-RX-API-DMAC10.html)
FR (1) FR1595075A (cg-RX-API-DMAC10.html)
GB (1) GB1265226A (cg-RX-API-DMAC10.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3421313A1 (de) * 1984-06-08 1985-12-12 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Rillenhornstrahler mit modenkoppler
US4872020A (en) * 1987-01-23 1989-10-03 Hughes Aircraft Company Slot antenna in circular waveguide
US4825219A (en) * 1987-01-23 1989-04-25 Hughes Aircraft Company Slot antenna in circular waveguide
US4907008A (en) * 1988-04-01 1990-03-06 Andrew Corporation Antenna for transmitting circularly polarized television signals
DE19742100A1 (de) * 1997-09-24 1999-03-25 Steinbeis Transferzentrum Raum Verfahren und Vorrichtung zum Aussenden eines Zeitsignals

Also Published As

Publication number Publication date
DE1962505B2 (de) 1972-10-19
FR1595075A (cg-RX-API-DMAC10.html) 1970-06-08
DE1962505A1 (de) 1970-06-18
US3646589A (en) 1972-02-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee