JPS57133704A - Antenna with reflecting plate - Google Patents

Antenna with reflecting plate

Info

Publication number
JPS57133704A
JPS57133704A JP1928381A JP1928381A JPS57133704A JP S57133704 A JPS57133704 A JP S57133704A JP 1928381 A JP1928381 A JP 1928381A JP 1928381 A JP1928381 A JP 1928381A JP S57133704 A JPS57133704 A JP S57133704A
Authority
JP
Japan
Prior art keywords
reflecting plate
antenna
dipole antenna
plate
electromagnetic waves
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
JP1928381A
Other languages
Japanese (ja)
Inventor
Seiji Mano
Takashi Kataki
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 JP1928381A priority Critical patent/JPS57133704A/en
Publication of JPS57133704A publication Critical patent/JPS57133704A/en
Pending 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

Abstract

PURPOSE:To optimize the gain of a dipole antenna with a reflecting plate, by taking an interval between a recess reflecting plate and a dipole antenna as >=1/4 the wavelength of employed electromagnetic waves, in an antenna with reflecting plate. CONSTITUTION:After electromagnetic waves from a dipole antenna 1 are reflected on a recessed reflecting plate 4, the phase of electric field produced on an aperture 5 is led in phase compared to the case of a virtual flat plane reflecting plate 6, and when an interval (h) between the plate 4 and the antenna 1 is regulated to >=lambda/4 the wave length of employed electromagnetic waves, the direct waves from the dipole antenna 1 and the reflection waves from the spherical reflection plate 4 are summed in inphase, allowing to optimize the gain toward the main radiation direction.
JP1928381A 1981-02-12 1981-02-12 Antenna with reflecting plate Pending JPS57133704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1928381A JPS57133704A (en) 1981-02-12 1981-02-12 Antenna with reflecting plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1928381A JPS57133704A (en) 1981-02-12 1981-02-12 Antenna with reflecting plate

Publications (1)

Publication Number Publication Date
JPS57133704A true JPS57133704A (en) 1982-08-18

Family

ID=11995112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1928381A Pending JPS57133704A (en) 1981-02-12 1981-02-12 Antenna with reflecting plate

Country Status (1)

Country Link
JP (1) JPS57133704A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016131278A (en) * 2015-01-13 2016-07-21 株式会社Ｎｔｔドコモ Polarization sharing antenna

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5354A (en) * 1976-06-24 1978-01-05 Mitsubishi Electric Corp Shaping beam antenna

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5354A (en) * 1976-06-24 1978-01-05 Mitsubishi Electric Corp Shaping beam antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016131278A (en) * 2015-01-13 2016-07-21 株式会社Ｎｔｔドコモ Polarization sharing antenna

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