JPS56169908A - Antenna device - Google Patents

Antenna device

Info

Publication number
JPS56169908A
JPS56169908A JP7455080A JP7455080A JPS56169908A JP S56169908 A JPS56169908 A JP S56169908A JP 7455080 A JP7455080 A JP 7455080A JP 7455080 A JP7455080 A JP 7455080A JP S56169908 A JPS56169908 A JP S56169908A
Authority
JP
Japan
Prior art keywords
support
longitudinal direction
wavelength
along
longer
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
JP7455080A
Other languages
Japanese (ja)
Other versions
JPH0221171B2 (en
Inventor
Hideo Sato
Akiyoshi Ogawa
Naoto Matsunaka
Takashi Kataki
Takashi Hirukoi
Katsuhiko Aoki
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
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK, Mitsubishi Electric Corp filed Critical Kokusai Denshin Denwa KK
Priority to JP7455080A priority Critical patent/JPS56169908A/en
Priority to CA000378683A priority patent/CA1172354A/en
Priority to GB8116783A priority patent/GB2081023B/en
Priority to US06/269,216 priority patent/US4369448A/en
Publication of JPS56169908A publication Critical patent/JPS56169908A/en
Publication of JPH0221171B2 publication Critical patent/JPH0221171B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01Q19/10—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 using reflecting surfaces
    • H01Q19/12—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 using reflecting surfaces wherein the surfaces are concave

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE:To improve the wide angle radiation characteristics, by fitting a trigonal prism in which the cross section is triangle and the length along the longitudinal direction of a support is longer than the wavelength, on the surface of the support, and fitting a construction having a thickness smaller than the wavelength along each side in the longitudinal direction. CONSTITUTION:The shape of the cross section vertical to the longitudinal direction of a support 4 of a trigonal prism 10 is triangle, the lengthes of sides connected to the support 4 are equal to the width of the support 4, the lengthes of other two sides are longer than the wavelength respectively, and the length of the support 4 along the longitudinal direction is longer than the wavelength. Further, a construction 11 is a flat plate the thickness of which is smaller than the wavelength, one end of the flat plate is connected along the longitudinal direction of the trigonal prism 10, and other end is irregular sides longer than the wavelength. The construction 11 is fitted along three sides of the longitudinal direction of the trigonal prism 10 so that it is in parallel with a plane including a plane of the longitudinal direction of the support 4 and the progressing direction of plane waves 5. With this constitution, the wide angle radiation characteristics can be improved.
JP7455080A 1980-06-03 1980-06-03 Antenna device Granted JPS56169908A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7455080A JPS56169908A (en) 1980-06-03 1980-06-03 Antenna device
CA000378683A CA1172354A (en) 1980-06-03 1981-05-29 Microwave antenna having improved wide angle radiation characteristics
GB8116783A GB2081023B (en) 1980-06-03 1981-06-02 Reflector antenna
US06/269,216 US4369448A (en) 1980-06-03 1981-06-02 Microwave antenna with radiation scattering support member elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7455080A JPS56169908A (en) 1980-06-03 1980-06-03 Antenna device

Publications (2)

Publication Number Publication Date
JPS56169908A true JPS56169908A (en) 1981-12-26
JPH0221171B2 JPH0221171B2 (en) 1990-05-14

Family

ID=13550460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7455080A Granted JPS56169908A (en) 1980-06-03 1980-06-03 Antenna device

Country Status (1)

Country Link
JP (1) JPS56169908A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105343A (en) * 1977-02-26 1978-09-13 Nippon Telegr & Teleph Corp <Ntt> Antenna unit
JPS54134959A (en) * 1978-04-12 1979-10-19 Mitsubishi Electric Corp Radio-wave shielding board

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105343A (en) * 1977-02-26 1978-09-13 Nippon Telegr & Teleph Corp <Ntt> Antenna unit
JPS54134959A (en) * 1978-04-12 1979-10-19 Mitsubishi Electric Corp Radio-wave shielding board

Also Published As

Publication number Publication date
JPH0221171B2 (en) 1990-05-14

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