JPS56107604A - Horn antenna - Google Patents

Horn antenna

Info

Publication number
JPS56107604A
JPS56107604A JP1041680A JP1041680A JPS56107604A JP S56107604 A JPS56107604 A JP S56107604A JP 1041680 A JP1041680 A JP 1041680A JP 1041680 A JP1041680 A JP 1041680A JP S56107604 A JPS56107604 A JP S56107604A
Authority
JP
Japan
Prior art keywords
angle
directivity
horn antenna
face
electric wave
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
JP1041680A
Other languages
Japanese (ja)
Other versions
JPS6358401B2 (en
Inventor
Tadashi Shimada
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.)
Hokuyo Automatic Co Ltd
Original Assignee
Hokuyo Automatic Co Ltd
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 Hokuyo Automatic Co Ltd filed Critical Hokuyo Automatic Co Ltd
Priority to JP1041680A priority Critical patent/JPS56107604A/en
Publication of JPS56107604A publication Critical patent/JPS56107604A/en
Publication of JPS6358401B2 publication Critical patent/JPS6358401B2/ja
Granted 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

  • Waveguide Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To increase the angle of directivity, by covering a part of the opening part of a horn antenna with an electric wave adsorber. CONSTITUTION:A part of the opening part 1a of the horn antenna 1 is masked partially by the electric wave absorber 2. When the opening space (d) is reduced by sliding the absorber 2, the angle of directivity increases in the direction of face H. But no change is given to the angle of directivity in the direction of face E. In such way, the angle of directivity can be changed freely by adding a simple attachment.
JP1041680A 1980-01-30 1980-01-30 Horn antenna Granted JPS56107604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1041680A JPS56107604A (en) 1980-01-30 1980-01-30 Horn antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1041680A JPS56107604A (en) 1980-01-30 1980-01-30 Horn antenna

Publications (2)

Publication Number Publication Date
JPS56107604A true JPS56107604A (en) 1981-08-26
JPS6358401B2 JPS6358401B2 (en) 1988-11-15

Family

ID=11749535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1041680A Granted JPS56107604A (en) 1980-01-30 1980-01-30 Horn antenna

Country Status (1)

Country Link
JP (1) JPS56107604A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654846A1 (en) * 1993-11-18 1995-05-24 Hughes Aircraft Company Attenuation fin blanket for a feed horn
EP0916929A1 (en) * 1997-11-07 1999-05-19 New Holland Belgium N.V. Antenna unit for the doppler measurement of grain flow
US6340953B1 (en) 1999-03-19 2002-01-22 Matsushita Electric Industrial Co., Ltd. Antenna device
WO2001089027A3 (en) * 2000-05-18 2002-05-10 Andrew S Podgorski Broadband horn antennas and electromagnetic field test facility

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6816087B2 (en) * 2018-11-02 2021-01-20 ファナック株式会社 Robot alarm notification system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654846A1 (en) * 1993-11-18 1995-05-24 Hughes Aircraft Company Attenuation fin blanket for a feed horn
EP0916929A1 (en) * 1997-11-07 1999-05-19 New Holland Belgium N.V. Antenna unit for the doppler measurement of grain flow
US6340953B1 (en) 1999-03-19 2002-01-22 Matsushita Electric Industrial Co., Ltd. Antenna device
WO2001089027A3 (en) * 2000-05-18 2002-05-10 Andrew S Podgorski Broadband horn antennas and electromagnetic field test facility

Also Published As

Publication number Publication date
JPS6358401B2 (en) 1988-11-15

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