JPS554148A - Generator for circular polarized wave - Google Patents
Generator for circular polarized waveInfo
- Publication number
- JPS554148A JPS554148A JP7699778A JP7699778A JPS554148A JP S554148 A JPS554148 A JP S554148A JP 7699778 A JP7699778 A JP 7699778A JP 7699778 A JP7699778 A JP 7699778A JP S554148 A JPS554148 A JP S554148A
- Authority
- JP
- Japan
- Prior art keywords
- antennas
- circular polarized
- wavelength
- excitation
- difference
- 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 arranging two kinds of slot antennas, differing in polarization surface by an angle of 90 deg., in matrix alternatively and by giving a difference of either 1/4 or 3/4 wavelength to excitation points between the both. CONSTITUTION:Slot antennas 5 and 6, and 5' and 6' are arranged crossing respectively at right angles, and when the excitation phase to those antennas is given a difference of pi/2, circular polarized waves are radiated. Antennas 5 and 5' and 6 and 6' with the same polarization surfaces are arranged on feeder 2 being coupled each other at an interval L of approximate single wavelength. Intervals (l) between different antennas 5 and 6, and 5' and 6' are fixed one fourth or three fourth as long as the wavelength so as to make antennas 5 and 5' pi/2 out of excitation phase with 6 and 6'. Each antenna, therefore, generates a circular polarized wave by progressive-wave excitation series feeding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7699778A JPS554148A (en) | 1978-06-27 | 1978-06-27 | Generator for circular polarized wave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7699778A JPS554148A (en) | 1978-06-27 | 1978-06-27 | Generator for circular polarized wave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554148A true JPS554148A (en) | 1980-01-12 |
Family
ID=13621410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7699778A Pending JPS554148A (en) | 1978-06-27 | 1978-06-27 | Generator for circular polarized wave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554148A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617706A (en) * | 1984-06-22 | 1986-01-14 | Japan Radio Co Ltd | Circularly polarized wave antenna |
JPS617707A (en) * | 1984-06-22 | 1986-01-14 | Japan Radio Co Ltd | Array antenna for circularly polarized wave |
JPS623105U (en) * | 1985-06-21 | 1987-01-09 |
-
1978
- 1978-06-27 JP JP7699778A patent/JPS554148A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS617706A (en) * | 1984-06-22 | 1986-01-14 | Japan Radio Co Ltd | Circularly polarized wave antenna |
JPS617707A (en) * | 1984-06-22 | 1986-01-14 | Japan Radio Co Ltd | Array antenna for circularly polarized wave |
JPS623105U (en) * | 1985-06-21 | 1987-01-09 |
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