| Presentation | 2003/7/23 Design of an Antenna with a Cosecant Square Radiation Pattern in Upward and Downward Directions Atsushi KEZUKA, Yoshihide YAMADA, Yasuhiro KAZAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the FWA system, base station antennas are planned to be mounted on telephone poles so as to achieve low cost. Since antenna position is relatively low, a cosecant square radiation pattern in upward and downward directions is requested. Previously, patch antennas were employed. Those antennas were not suitable for wide frequency use. In this paper, a reflector antenna is employed. A single reflector curvature is shaped by the ray-tracing method for a TM01mode horn. Calculated results showed that radiation patterns were distorted by direct waves from a feed horn. In order to achieve satisfactory radiation patterns, a shaped dielectric lens was inserted in a feed horn. An excellent radiation pattern was ensured through calculations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cosecant square beam / Reflector antenna / Base station antenna / Dielectric lens / TM01mode horn |
| Paper # | A・P2003-51,SAT2003-43,MW2003-57,OPE2003-44 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2003/7/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of an Antenna with a Cosecant Square Radiation Pattern in Upward and Downward Directions |
| Sub Title (in English) | |
| Keyword(1) | Cosecant square beam |
| Keyword(2) | Reflector antenna |
| Keyword(3) | Base station antenna |
| Keyword(4) | Dielectric lens |
| Keyword(5) | TM01mode horn |
| 1st Author's Name | Atsushi KEZUKA |
| 1st Author's Affiliation | National Defense Academy() |
| 2nd Author's Name | Yoshihide YAMADA |
| 2nd Author's Affiliation | National Defense Academy |
| 3rd Author's Name | Yasuhiro KAZAMA |
| 3rd Author's Affiliation | Japan Radio Co. Ltd |
| Date | 2003/7/23 |
| Paper # | A・P2003-51,SAT2003-43,MW2003-57,OPE2003-44 |
| Volume (vol) | vol.103 |
| Number (no) | 233 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |