JPS5779711A - Antenna device - Google Patents

Antenna device

Info

Publication number
JPS5779711A
JPS5779711A JP15553580A JP15553580A JPS5779711A JP S5779711 A JPS5779711 A JP S5779711A JP 15553580 A JP15553580 A JP 15553580A JP 15553580 A JP15553580 A JP 15553580A JP S5779711 A JPS5779711 A JP S5779711A
Authority
JP
Japan
Prior art keywords
radiation beam
mirror
subhorn
submirror
blocking
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
JP15553580A
Other languages
Japanese (ja)
Inventor
Takashi Kataki
Seiji Mano
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 JP15553580A priority Critical patent/JPS5779711A/en
Publication of JPS5779711A publication Critical patent/JPS5779711A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To eliminate the blocking by a subreflection mirror and to decrease the side lobe, by providing a subreflection mirror in front of the main reflecting mirror and the 2nd radiation section consisting of the subradiator and the submirror at the submirror. CONSTITUTION:Signals from a transmission source are applied mostly to a power feeding horn 4. Electromagnetic waves radiated from the horn 4 form the 1st radiation beam via a subreflecting mirror 3 and a main reflecting mirror 1. A part of the signal from the transmission source is applied to a subhorn 5. Electromagnetic waves radiated from the subhorn 5 form the 2nd radiation beam through reflection on a submirror surface 6. A phase adjusting means is provided at the power feeding line to the subhorn 5 so that the effect of blocking of the 1st radiation beam pattern can be compensated by the 2nd radiation beam pattern.
JP15553580A 1980-11-05 1980-11-05 Antenna device Pending JPS5779711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15553580A JPS5779711A (en) 1980-11-05 1980-11-05 Antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15553580A JPS5779711A (en) 1980-11-05 1980-11-05 Antenna device

Publications (1)

Publication Number Publication Date
JPS5779711A true JPS5779711A (en) 1982-05-19

Family

ID=15608182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15553580A Pending JPS5779711A (en) 1980-11-05 1980-11-05 Antenna device

Country Status (1)

Country Link
JP (1) JPS5779711A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177004A (en) * 1985-01-31 1986-08-08 Mitsubishi Electric Corp Transmitting/receiving device
US8059038B2 (en) 2006-03-08 2011-11-15 Nokia Corporation Low loss layered cover for an antenna

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231893A (en) * 1961-10-05 1966-01-25 Bell Telephone Labor Inc Cassegrainian antenna with aperture blocking compensation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231893A (en) * 1961-10-05 1966-01-25 Bell Telephone Labor Inc Cassegrainian antenna with aperture blocking compensation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177004A (en) * 1985-01-31 1986-08-08 Mitsubishi Electric Corp Transmitting/receiving device
US8059038B2 (en) 2006-03-08 2011-11-15 Nokia Corporation Low loss layered cover for an antenna

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