JPS5530239A - Parabolic antenna - Google Patents

Parabolic antenna

Info

Publication number
JPS5530239A
JPS5530239A JP10327178A JP10327178A JPS5530239A JP S5530239 A JPS5530239 A JP S5530239A JP 10327178 A JP10327178 A JP 10327178A JP 10327178 A JP10327178 A JP 10327178A JP S5530239 A JPS5530239 A JP S5530239A
Authority
JP
Japan
Prior art keywords
nearly
rectangular metallic
wavelength
parallel
mirror
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
JP10327178A
Other languages
Japanese (ja)
Inventor
Yuji Numano
Katsumi Nakayama
Teiji Fujihira
Yoshio Matsushima
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.)
DKK Co Ltd
Original Assignee
Denki Kogyo 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 Denki Kogyo Co Ltd filed Critical Denki Kogyo Co Ltd
Priority to JP10327178A priority Critical patent/JPS5530239A/en
Publication of JPS5530239A publication Critical patent/JPS5530239A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/02—Details
    • H01Q19/021—Means for reducing undesirable effects
    • H01Q19/022—Means for reducing undesirable effects for reducing the edge scattering of reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE:To improve a level, lowered due to a disturbing wave nearly up to a directional level by providing several rectangular metallic fins to the circumferential edge of a reflex mirror in parallel to an opening surface. CONSTITUTION:Several rectangular metallic fins 15 are provided along the circumferential edge of reflex mirror 13, nearly in parallel (perpendicular to the axis of the mirror) to its opening surface and at fixed intervals. Each rectangular metallic fin 15 is formed of a lightweight conductor plate of aluminium, etc.; its width and height are set nearly to one wavelength and a half wavelength respectively, and each arrangement interval is approximately one wavelength.
JP10327178A 1978-08-24 1978-08-24 Parabolic antenna Pending JPS5530239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10327178A JPS5530239A (en) 1978-08-24 1978-08-24 Parabolic antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10327178A JPS5530239A (en) 1978-08-24 1978-08-24 Parabolic antenna

Publications (1)

Publication Number Publication Date
JPS5530239A true JPS5530239A (en) 1980-03-04

Family

ID=14349727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10327178A Pending JPS5530239A (en) 1978-08-24 1978-08-24 Parabolic antenna

Country Status (1)

Country Link
JP (1) JPS5530239A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56146305A (en) * 1980-04-15 1981-11-13 Nippon Telegr & Teleph Corp <Ntt> Electric wave masking substance
US4485692A (en) * 1982-06-17 1984-12-04 Moore Jeff D Auxiliary transmission
US5341150A (en) * 1988-09-28 1994-08-23 Georgia Tech Research Corp. Low sidelobe reflector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56146305A (en) * 1980-04-15 1981-11-13 Nippon Telegr & Teleph Corp <Ntt> Electric wave masking substance
US4485692A (en) * 1982-06-17 1984-12-04 Moore Jeff D Auxiliary transmission
US5341150A (en) * 1988-09-28 1994-08-23 Georgia Tech Research Corp. Low sidelobe reflector

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