FR2176840B1 - - Google Patents

Info

Publication number
FR2176840B1
FR2176840B1 FR7309630A FR7309630A FR2176840B1 FR 2176840 B1 FR2176840 B1 FR 2176840B1 FR 7309630 A FR7309630 A FR 7309630A FR 7309630 A FR7309630 A FR 7309630A FR 2176840 B1 FR2176840 B1 FR 2176840B1
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.)
Expired
Application number
FR7309630A
Other versions
FR2176840A1 (fr
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2176840A1 publication Critical patent/FR2176840A1/fr
Application granted granted Critical
Publication of FR2176840B1 publication Critical patent/FR2176840B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
FR7309630A 1972-03-17 1973-03-16 Expired FR2176840B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2212996A DE2212996C3 (de) 1972-03-17 1972-03-17 Einem beweglichen Sender nachfuhrbare Horn antenne

Publications (2)

Publication Number Publication Date
FR2176840A1 FR2176840A1 (fr) 1973-11-02
FR2176840B1 true FR2176840B1 (fr) 1980-04-30

Family

ID=5839255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309630A Expired FR2176840B1 (fr) 1972-03-17 1973-03-16

Country Status (6)

Country Link
US (1) US3864683A (fr)
JP (1) JPS5617623B2 (fr)
CA (1) CA990833A (fr)
DE (1) DE2212996C3 (fr)
FR (1) FR2176840B1 (fr)
GB (1) GB1412352A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043654A (en) * 1971-02-12 1977-08-23 Xerox Corporation Display system
IT974574B (it) * 1972-09-15 1974-07-10 Finike Italiana Marposs Micrometro comparatore con disposi tivo rapido ed automatico di azzera mento
JPS5635763Y2 (fr) * 1976-04-30 1981-08-24
DE2744841C3 (de) * 1977-10-05 1980-08-21 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Sich exponentiell erweiternder Hornstrahler für eine Mikrowellenantenne
DE3020514A1 (de) * 1980-05-30 1981-12-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Antennenspeisesystem fuer eine nachfuehrbare antenne
US4343005A (en) * 1980-12-29 1982-08-03 Ford Aerospace & Communications Corporation Microwave antenna system having enhanced band width and reduced cross-polarization
DE3216708A1 (de) * 1982-05-05 1984-02-09 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur gewinnung von antennennachfuehrsignalen
DE3381303D1 (de) * 1983-06-18 1990-04-12 Ant Nachrichtentech Viertornetzwerk fuer mikrowellenantennen mit monopulsnachfuehrung.
US5216433A (en) * 1991-11-15 1993-06-01 Hughes Aircraft Company Polarimetric antenna
US9640851B2 (en) * 2014-05-26 2017-05-02 The Board Of Trustees Of The Leland Stanford Junior University RF waveguide phase-directed power combiners

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931033A (en) * 1955-07-19 1960-03-29 Bell Telephone Labor Inc Multi-mode automatic tracking antenna system

Also Published As

Publication number Publication date
DE2212996C3 (de) 1980-09-25
DE2212996A1 (de) 1973-09-27
GB1412352A (en) 1975-11-05
JPS496861A (fr) 1974-01-22
US3864683A (en) 1975-02-04
DE2212996B2 (de) 1980-01-31
CA990833A (en) 1976-06-08
JPS5617623B2 (fr) 1981-04-23
FR2176840A1 (fr) 1973-11-02

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse