JPS5525205A - Variable directional antenna - Google Patents

Variable directional antenna

Info

Publication number
JPS5525205A
JPS5525205A JP9718578A JP9718578A JPS5525205A JP S5525205 A JPS5525205 A JP S5525205A JP 9718578 A JP9718578 A JP 9718578A JP 9718578 A JP9718578 A JP 9718578A JP S5525205 A JPS5525205 A JP S5525205A
Authority
JP
Japan
Prior art keywords
reception
transmission
pattern
horn
distributor
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.)
Granted
Application number
JP9718578A
Other languages
Japanese (ja)
Other versions
JPS5836863B2 (en
Inventor
Noboru Toyama
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP9718578A priority Critical patent/JPS5836863B2/en
Publication of JPS5525205A publication Critical patent/JPS5525205A/en
Publication of JPS5836863B2 publication Critical patent/JPS5836863B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/245—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching in the focal plane of a focussing device

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To secure a difference between the transmission and reception patterns to ensure the adaptation for transmission and reception of the elctric waves, and particularly to give the selection function of the directivity for the reception pattern to the waves sent from the different regions. CONSTITUTION:Several units of primary horn 4 are distributed near the focus position of secondary reflector 5 of the double reflection type offset Gregory antenna, and the directions of these primary horns are set properly so that the directivity pattern of the antenna consisting of the primary horns may point to the desired region. The transmission wave supplied from input terminal 1 is supplied to horn 4 via several units of power distributor 2 and transmission/reception distributor 3 and in correspondence to the desired general transmission pattern. The reception wave via horn 4 is led to switch circuit 7 via distributor 3, and the reception wave corresponding to the desired reception pattern is drawn out selectively by the control signal.
JP9718578A 1978-08-11 1978-08-11 variable directional antenna Expired JPS5836863B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9718578A JPS5836863B2 (en) 1978-08-11 1978-08-11 variable directional antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9718578A JPS5836863B2 (en) 1978-08-11 1978-08-11 variable directional antenna

Publications (2)

Publication Number Publication Date
JPS5525205A true JPS5525205A (en) 1980-02-22
JPS5836863B2 JPS5836863B2 (en) 1983-08-12

Family

ID=14185515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9718578A Expired JPS5836863B2 (en) 1978-08-11 1978-08-11 variable directional antenna

Country Status (1)

Country Link
JP (1) JPS5836863B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6467005A (en) * 1987-09-07 1989-03-13 Nippon Telegraph & Telephone Mobile communication base station antenna system
JPH01246928A (en) * 1988-03-29 1989-10-02 Nec Corp On-satellite repeater for communication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5659905B2 (en) * 2011-03-29 2015-01-28 日本電気株式会社 Microwave transmission apparatus for satellite installation, target area tracking method using the apparatus, and control program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6467005A (en) * 1987-09-07 1989-03-13 Nippon Telegraph & Telephone Mobile communication base station antenna system
JPH01246928A (en) * 1988-03-29 1989-10-02 Nec Corp On-satellite repeater for communication

Also Published As

Publication number Publication date
JPS5836863B2 (en) 1983-08-12

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