JPS554147A - Generator for circular polarized wave - Google Patents
Generator for circular polarized waveInfo
- 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
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.
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)
| 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 |
-
1978
- 1978-06-27 JP JP7699678A patent/JPS554147A/en active Pending
Cited By (4)
| 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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