JPS55141805A - Multibeam antenna of variable directivity - Google Patents

Multibeam antenna of variable directivity

Info

Publication number
JPS55141805A
JPS55141805A JP5038279A JP5038279A JPS55141805A JP S55141805 A JPS55141805 A JP S55141805A JP 5038279 A JP5038279 A JP 5038279A JP 5038279 A JP5038279 A JP 5038279A JP S55141805 A JPS55141805 A JP S55141805A
Authority
JP
Japan
Prior art keywords
amplitude
phase
transmitters
transmitter
adjusted
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.)
Pending
Application number
JP5038279A
Other languages
Japanese (ja)
Inventor
Kinichiro Araki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5038279A priority Critical patent/JPS55141805A/en
Publication of JPS55141805A publication Critical patent/JPS55141805A/en
Pending 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

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To enable to determine the beam direction freely every transmitter, by providing the means changing the phase and amplitude with the relay section, in connecting a plurality of transmitters and antennas one another. CONSTITUTION:The transmission power from m sets of transmitters 11-1m is branched into (n) at the branches 111-11m. The signal branched by (n) is adjusted at the amplitude and phase adjustors 1211-121n and fed to the radiation elements 141-14n with a given beam direction every transmitter. Accordingly, since the amplitude and phase can be adjusted every radiator as to each transmission output, the determination of the multibeam direction is free and accurate. Further, since the control means is of electric operation type, beam selection can be made in high speed.
JP5038279A 1979-04-23 1979-04-23 Multibeam antenna of variable directivity Pending JPS55141805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5038279A JPS55141805A (en) 1979-04-23 1979-04-23 Multibeam antenna of variable directivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5038279A JPS55141805A (en) 1979-04-23 1979-04-23 Multibeam antenna of variable directivity

Publications (1)

Publication Number Publication Date
JPS55141805A true JPS55141805A (en) 1980-11-06

Family

ID=12857313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5038279A Pending JPS55141805A (en) 1979-04-23 1979-04-23 Multibeam antenna of variable directivity

Country Status (1)

Country Link
JP (1) JPS55141805A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60264104A (en) * 1984-06-04 1985-12-27 アライド・コーポレーシヨン Antenna feeding circuit network
JPH01268202A (en) * 1988-04-20 1989-10-25 Yuuseishiyou Tsushin Sogo Kenkyusho Time division antenna system
JPH04150304A (en) * 1990-10-11 1992-05-22 Mitsubishi Electric Corp Phased array antenna system
US5204686A (en) * 1988-04-06 1993-04-20 Trw Inc. RF Feed array
JP2006229294A (en) * 2005-02-15 2006-08-31 Dx Antenna Co Ltd Variable directional antenna system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60264104A (en) * 1984-06-04 1985-12-27 アライド・コーポレーシヨン Antenna feeding circuit network
US5204686A (en) * 1988-04-06 1993-04-20 Trw Inc. RF Feed array
JPH01268202A (en) * 1988-04-20 1989-10-25 Yuuseishiyou Tsushin Sogo Kenkyusho Time division antenna system
JPH04150304A (en) * 1990-10-11 1992-05-22 Mitsubishi Electric Corp Phased array antenna system
JP2006229294A (en) * 2005-02-15 2006-08-31 Dx Antenna Co Ltd Variable directional antenna system
JP4494246B2 (en) * 2005-02-15 2010-06-30 Ｄｘアンテナ株式会社 Variable directional antenna device

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