FR2226777A1 - - Google Patents

Info

Publication number
FR2226777A1
FR2226777A1 FR7413507A FR7413507A FR2226777A1 FR 2226777 A1 FR2226777 A1 FR 2226777A1 FR 7413507 A FR7413507 A FR 7413507A FR 7413507 A FR7413507 A FR 7413507A FR 2226777 A1 FR2226777 A1 FR 2226777A1
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Withdrawn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
FR7413507A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2226777A1 publication Critical patent/FR2226777A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0018—Space- fed arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • 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
    • H01Q3/26—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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/28—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 relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the amplitude

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)
  • Waveguide Aerials (AREA)
FR7413507A 1973-04-18 1974-04-18 Withdrawn FR2226777A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00352154A US3845485A (en) 1973-04-18 1973-04-18 Non-rotating antenna

Publications (1)

Publication Number Publication Date
FR2226777A1 true FR2226777A1 (fr) 1974-11-15

Family

ID=23384008

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7413507A Withdrawn FR2226777A1 (fr) 1973-04-18 1974-04-18

Country Status (7)

Country Link
US (1) US3845485A (fr)
JP (1) JPS5323075B2 (fr)
BE (1) BE814976R (fr)
DE (1) DE2417653A1 (fr)
FR (1) FR2226777A1 (fr)
GB (1) GB1460796A (fr)
IT (1) IT1006412B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260994A (en) * 1978-11-09 1981-04-07 International Telephone And Telegraph Corporation Antenna pattern synthesis and shaping
EP0222086B1 (fr) * 1982-10-16 1990-09-26 ANT Nachrichtentechnik GmbH Transformateur de polarisation
JPH10270944A (ja) * 1997-03-21 1998-10-09 Canon Inc 変調装置
US6492942B1 (en) 1999-11-09 2002-12-10 Com Dev International, Inc. Content-based adaptive parasitic array antenna system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713167A (en) * 1971-08-05 1973-01-23 Us Navy Omni-steerable cardioid antenna

Also Published As

Publication number Publication date
DE2417653A1 (de) 1974-10-24
GB1460796A (en) 1977-01-06
US3845485A (en) 1974-10-29
JPS5323075B2 (fr) 1978-07-12
IT1006412B (it) 1976-09-30
BE814976R (fr) 1974-11-14
JPS5010943A (fr) 1975-02-04

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Legal Events

Date Code Title Description
ST Notification of lapse