EP0227910A3 - Beam forming network for a butler matrix fed circular array - Google Patents

Beam forming network for a butler matrix fed circular array Download PDF

Info

Publication number
EP0227910A3
EP0227910A3 EP86115004A EP86115004A EP0227910A3 EP 0227910 A3 EP0227910 A3 EP 0227910A3 EP 86115004 A EP86115004 A EP 86115004A EP 86115004 A EP86115004 A EP 86115004A EP 0227910 A3 EP0227910 A3 EP 0227910A3
Authority
EP
European Patent Office
Prior art keywords
beam forming
forming network
circular array
butler matrix
matrix fed
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.)
Withdrawn
Application number
EP86115004A
Other languages
German (de)
French (fr)
Other versions
EP0227910A2 (en
Inventor
Joseph Henry C/O Allied Corporation Acoraci
Allen Isaac C/O Allied Corporation Sinsky
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.)
Allied Corp
Original Assignee
Allied 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 Allied Corp filed Critical Allied Corp
Publication of EP0227910A2 publication Critical patent/EP0227910A2/en
Publication of EP0227910A3 publication Critical patent/EP0227910A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
    • H01P5/22—Hybrid ring junctions
    • H01P5/222—180° rat race hybrid rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns
    • 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
    • H01Q3/30—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 relative phase between the radiating elements of an array
    • H01Q3/34—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 relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—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 relative phase between the radiating elements of an array by electrical means with phasing matrix

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A beam forming network is described for generating a difference beam in a first direction with an omnidirectional sidelobe in other directions incorporating a plurality of hy­ brid circuits and a plurality of directional couplers coupled together. The invention overcomes the problem of requiring a more complex circuit for generating a difference beam with an omnidirectional sidelobe.
EP86115004A 1985-11-29 1986-10-29 Beam forming network for a butler matrix fed circular array Withdrawn EP0227910A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80291785A 1985-11-29 1985-11-29
US802917 1985-11-29

Publications (2)

Publication Number Publication Date
EP0227910A2 EP0227910A2 (en) 1987-07-08
EP0227910A3 true EP0227910A3 (en) 1987-12-02

Family

ID=25185082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115004A Withdrawn EP0227910A3 (en) 1985-11-29 1986-10-29 Beam forming network for a butler matrix fed circular array

Country Status (3)

Country Link
EP (1) EP0227910A3 (en)
JP (1) JPS62132403A (en)
IL (1) IL80457A0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2778325B2 (en) * 1992-01-31 1998-07-23 日本電気株式会社 Secondary search radar equipment
JP4363803B2 (en) 2000-08-02 2009-11-11 パナソニック株式会社 Method for exciting circular array antenna and radio apparatus using the method
US11002846B2 (en) 2015-03-16 2021-05-11 Arralis Holdings Limited Amplitude comparison monopulse RADAR system

Citations (3)

* 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
US4101892A (en) * 1975-11-19 1978-07-18 Andrew Alford Localizer antenna array for use with localizer transmitters operating at one carrier frequency
US4196436A (en) * 1978-11-14 1980-04-01 Ford Motor Company Differential backlobe antenna array

Patent Citations (3)

* 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
US4101892A (en) * 1975-11-19 1978-07-18 Andrew Alford Localizer antenna array for use with localizer transmitters operating at one carrier frequency
US4196436A (en) * 1978-11-14 1980-04-01 Ford Motor Company Differential backlobe antenna array

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PROCEEDINGS OF THE IEEE 1979 NATIONAL AEROSPACE AND ELECTRONICS CONFERENCE, NAECON 1979, Dayton, 15th-17th May 1979, vol. 1, pages 44-49, IEEE; J.A. ACORACI: "Small lightweight electronically steerable cylindrical antenna successfully utilized in an air traffic management system" *

Also Published As

Publication number Publication date
IL80457A0 (en) 1987-01-30
JPS62132403A (en) 1987-06-15
EP0227910A2 (en) 1987-07-08

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Inventor name: ACORACI, JOSEPH HENRYC/O ALLIED CORPORATION

Inventor name: SINSKY, ALLEN ISAACC/O ALLIED CORPORATION