JPS5630302A - Electromagnetic horn - Google Patents

Electromagnetic horn

Info

Publication number
JPS5630302A
JPS5630302A JP10584679A JP10584679A JPS5630302A JP S5630302 A JPS5630302 A JP S5630302A JP 10584679 A JP10584679 A JP 10584679A JP 10584679 A JP10584679 A JP 10584679A JP S5630302 A JPS5630302 A JP S5630302A
Authority
JP
Japan
Prior art keywords
center
circular opening
radius
opening
symmetry
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
JP10584679A
Other languages
Japanese (ja)
Other versions
JPS6251003B2 (en
Inventor
Noboru Toyama
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP10584679A priority Critical patent/JPS5630302A/en
Publication of JPS5630302A publication Critical patent/JPS5630302A/en
Publication of JPS6251003B2 publication Critical patent/JPS6251003B2/ja
Granted 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

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

PURPOSE:To improve the symmetry of an irradiation pattern by projecting circumferences of a circular opening in an arc shape so that the opening will by point- symmetric on its center. CONSTITUTION:Circumferences of a circular opening of r1 in radius are projected inward in an arc shape with spot symmetry on its center of the opening. So that an irradiation pattern with regard to two cross-polarization components is symmetric, four equal quadrants of the original circular opening are provided with one projection part each and four projection parts are arranged with point symmetry on its center as shown by slanting shadow parts. The radius of each projection part may be set to r2 differing from the radius of the original circular opening. In this case, both center-to-center distances are denoted as l1 and l2.
JP10584679A 1979-08-22 1979-08-22 Electromagnetic horn Granted JPS5630302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10584679A JPS5630302A (en) 1979-08-22 1979-08-22 Electromagnetic horn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10584679A JPS5630302A (en) 1979-08-22 1979-08-22 Electromagnetic horn

Publications (2)

Publication Number Publication Date
JPS5630302A true JPS5630302A (en) 1981-03-26
JPS6251003B2 JPS6251003B2 (en) 1987-10-28

Family

ID=14418372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10584679A Granted JPS5630302A (en) 1979-08-22 1979-08-22 Electromagnetic horn

Country Status (1)

Country Link
JP (1) JPS5630302A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757324A (en) * 1987-04-23 1988-07-12 Rca Corporation Antenna array with hexagonal horns
US4811028A (en) * 1987-01-20 1989-03-07 Avco Corporation Quadridge antenna for space vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230143A (en) * 1975-09-01 1977-03-07 Nippon Telegr & Teleph Corp <Ntt> Primary radiator with ridge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230143A (en) * 1975-09-01 1977-03-07 Nippon Telegr & Teleph Corp <Ntt> Primary radiator with ridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811028A (en) * 1987-01-20 1989-03-07 Avco Corporation Quadridge antenna for space vehicle
US4757324A (en) * 1987-04-23 1988-07-12 Rca Corporation Antenna array with hexagonal horns

Also Published As

Publication number Publication date
JPS6251003B2 (en) 1987-10-28

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