JPS568903A - Antenna unit - Google Patents

Antenna unit

Info

Publication number
JPS568903A
JPS568903A JP8568479A JP8568479A JPS568903A JP S568903 A JPS568903 A JP S568903A JP 8568479 A JP8568479 A JP 8568479A JP 8568479 A JP8568479 A JP 8568479A JP S568903 A JPS568903 A JP S568903A
Authority
JP
Japan
Prior art keywords
antennas
radio
primary radiator
radiator frame
metal surface
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
JP8568479A
Other languages
Japanese (ja)
Inventor
Masaharu Shiotani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8568479A priority Critical patent/JPS568903A/en
Publication of JPS568903A publication Critical patent/JPS568903A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial

Landscapes

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

Abstract

PURPOSE:To make it possible to use two kind of antennas in common by preventing a radiation pattern from becoming disordered due to reflection on a metal surface provided between two kind of antennas by sticking a radio-wave absorber to the metal surface. CONSTITUTION:Horns 3 are covered with a primary radiator frame 5 made of metal, radio-wave absorber 6 is stuck to the outside surface of this primary radiator frame 5, and dipole antennas 1 are arranged on the outside surface of a primary radiator frame 5 with radio-wave absorbers 6 interposed. As a result, radio waves radiated by antennas 1 are absorbed by radio-wave absorbers 6 to eliminate influences of radiation on the metal surface of a primary radiator frame 5 and consequently even when the antenna 1 composed of an array of horns 3 and antenna 1 are used in common, a radiation pattern by antennas 1 is prevented from becoming disordered.
JP8568479A 1979-07-03 1979-07-03 Antenna unit Pending JPS568903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8568479A JPS568903A (en) 1979-07-03 1979-07-03 Antenna unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8568479A JPS568903A (en) 1979-07-03 1979-07-03 Antenna unit

Publications (1)

Publication Number Publication Date
JPS568903A true JPS568903A (en) 1981-01-29

Family

ID=13865664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8568479A Pending JPS568903A (en) 1979-07-03 1979-07-03 Antenna unit

Country Status (1)

Country Link
JP (1) JPS568903A (en)

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