JPS554147A - Generator for circular polarized wave - Google Patents

Generator for circular polarized wave

Info

Publication number
JPS554147A
JPS554147A JP7699678A JP7699678A JPS554147A JP S554147 A JPS554147 A JP S554147A JP 7699678 A JP7699678 A JP 7699678A JP 7699678 A JP7699678 A JP 7699678A JP S554147 A JPS554147 A JP S554147A
Authority
JP
Japan
Prior art keywords
circular polarized
strip lines
antennas
phase
angle
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
JP7699678A
Other languages
Japanese (ja)
Inventor
Yasuhiro Ishii
Katsuzo Uenishi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP7699678A priority Critical patent/JPS554147A/en
Publication of JPS554147A publication Critical patent/JPS554147A/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
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

PURPOSE:To generate circular polarized waves with the high gain and sharp directivity by alternatively arranging two kinds of slot antennas, differing in polarization surface by 90 deg., in a matrix and by exciting the both with a phase difference of pi/2. CONSTITUTION:Several slot antennas 7 and 9 are arrayed in a matrix with an angle of 90 deg. given. A group of antennas 7 tilting at the same angle are excited by strip lines 8 and 8', and a group of antenna 9 tilting at a different and identical angle are by strip lines 10 and 10'. Intervals L between respective slot antennas are nearly as long as a single wavelength and they are excitd in phase. Power supplied to terminals A and B is phase-shifted by pi/2 and branched at branch point 5 to strip lines 8 and 8', and 10 and 10', so that each slot antenna will be excited by a progressive wave to generate a circular polarized wave on the whole.
JP7699678A 1978-06-27 1978-06-27 Generator for circular polarized wave Pending JPS554147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7699678A JPS554147A (en) 1978-06-27 1978-06-27 Generator for circular polarized wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7699678A JPS554147A (en) 1978-06-27 1978-06-27 Generator for circular polarized wave

Publications (1)

Publication Number Publication Date
JPS554147A true JPS554147A (en) 1980-01-12

Family

ID=13621380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7699678A Pending JPS554147A (en) 1978-06-27 1978-06-27 Generator for circular polarized wave

Country Status (1)

Country Link
JP (1) JPS554147A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63211804A (en) * 1987-02-27 1988-09-02 Nec Corp Planer array antenna
JPH02503380A (en) * 1988-02-24 1990-10-11 ヒューズ・エアクラフト・カンパニー Circularly polarized microstrip antenna array
US6424298B1 (en) 1999-05-21 2002-07-23 Kabushiki Kaisha Toyota Chuo Kenkyusho Microstrip array antenna
US8915672B2 (en) 2009-06-05 2014-12-23 Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co., Ltd. Movable breakwater and method of operating movable breakwater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63211804A (en) * 1987-02-27 1988-09-02 Nec Corp Planer array antenna
JPH02503380A (en) * 1988-02-24 1990-10-11 ヒューズ・エアクラフト・カンパニー Circularly polarized microstrip antenna array
US6424298B1 (en) 1999-05-21 2002-07-23 Kabushiki Kaisha Toyota Chuo Kenkyusho Microstrip array antenna
US8915672B2 (en) 2009-06-05 2014-12-23 Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co., Ltd. Movable breakwater and method of operating movable breakwater

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