JPS54110764A - Horn antenna - Google Patents

Horn antenna

Info

Publication number
JPS54110764A
JPS54110764A JP1741878A JP1741878A JPS54110764A JP S54110764 A JPS54110764 A JP S54110764A JP 1741878 A JP1741878 A JP 1741878A JP 1741878 A JP1741878 A JP 1741878A JP S54110764 A JPS54110764 A JP S54110764A
Authority
JP
Japan
Prior art keywords
cover
wave
reflected
waves
opening
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
JP1741878A
Other languages
Japanese (ja)
Inventor
Hirokazu Tanaka
Shunichiro Kawabata
Noriaki Watanabe
Yuji Kobayashi
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 JP1741878A priority Critical patent/JPS54110764A/en
Publication of JPS54110764A publication Critical patent/JPS54110764A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns

Abstract

PURPOSE:To negate the reflected wave caused by the opening cover and thus to prevent the deterioration of the oval polarized wave rate by providing the opening covers at the two areas in the path of the electric wave of the horn antenna. CONSTITUTION:The wave sent from circular-rectangular wave guide converter 5 passes through polarized branching filter 4, circular polarized wave generator 3, conical horn 2 plus opening cover 1a and 1b in that order and then radiated into the free space in the form of the circular polarized wave. The part of the incident waves is reflected by cover 1a, and part of the waves passed through cover 1a is reflected again by cover 1b. In this connection, the space between 1a and 1b is selected to the length of the odd-multiplication of 1/4 waveform or 1/4 waveform. At the same time, the relationship between reflection coefficient Pa of cover 1a and reflection coefficient Pb of cover 1b is set to Pb=Pa/(1-Pa)<2>. As a result, the reflected waves through the two covers can be negated completely.
JP1741878A 1978-02-17 1978-02-17 Horn antenna Pending JPS54110764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1741878A JPS54110764A (en) 1978-02-17 1978-02-17 Horn antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1741878A JPS54110764A (en) 1978-02-17 1978-02-17 Horn antenna

Publications (1)

Publication Number Publication Date
JPS54110764A true JPS54110764A (en) 1979-08-30

Family

ID=11943451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1741878A Pending JPS54110764A (en) 1978-02-17 1978-02-17 Horn antenna

Country Status (1)

Country Link
JP (1) JPS54110764A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106312U (en) * 1980-12-22 1982-06-30
JPS58194513U (en) * 1982-06-22 1983-12-24 日本電気株式会社 horn antenna
JPH0329503A (en) * 1989-06-27 1991-02-07 Nippon Antenna Kk Parabolic antenna for shf

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106312U (en) * 1980-12-22 1982-06-30
JPS58194513U (en) * 1982-06-22 1983-12-24 日本電気株式会社 horn antenna
JPH0329503A (en) * 1989-06-27 1991-02-07 Nippon Antenna Kk Parabolic antenna for shf

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