| Presentation | 2022-11-18 Phase measurement and adjustment of reflector antenna with beam waveguide feeds Shin-ichi Yamamoto, Hiroto Ado, Ryuya Seki, Yasuhiro Nishioka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, the use of multiple 32-m class medium-sized reflector antennas arranged in an array configuration has been considered as an alternative to 70-m class large reflector antennas. In the literature, it is assumed that the phase is adjusted by signal processing in the receiving system, but when used as a transmitting antenna, it is necessary to know the passing phase of each reflector antenna and correct it. In many cases, the scale of antennas assumed here has a beam waveguide system. The beam waveguide feeding system has a long propagation path length from the transmitter or receiver, and there are large individual differences among antennas. Therefore, to adjust the radiation phase of reflector antennas with a beam waveguide feeding system, this paper proposes a method for measuring the transmission phase of the reflector antennas. A reflected plate is placed in the center hole at the center of the primary reflector, and the reflection phase at the primary radiator horn is measured and half of it is used as the transmission phase. The proposed method was verified by actual measurements using calculated values and a simplified model. Furthermore, when the reflection phase was measured in a reflector antenna with an actual beam waveguide feeding system, a phenomenon that the phase fluctuated with AZ rotation was observed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Reflector antenna / Beam waveguide feeds / Transmission phase / Measurement |
| Paper # | EMT2022-64 |
| Date of Issue | 2022-11-10 (EMT) |
| Conference Information | |
| Committee | EMT / IEE-EMT |
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| Conference Date | 2022/11/17(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Electromagnetic Theory, etc. |
| Chair | Hiroyuki Deguchi(Doshisha Univ.) / Shinichi Furukawa(Nihon Univ.) |
| Vice Chair | Hideki Kawaguchi(Muroran Inst. of Tech) |
| Secretary | Hideki Kawaguchi(Mitsubishi Electric) / (Kyushu Sangyo Univ.) |
| Assistant | Ryo Natsuaki(Univ. of Tokyo) / Kazuki Niino(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Phase measurement and adjustment of reflector antenna with beam waveguide feeds |
| Sub Title (in English) | |
| Keyword(1) | Reflector antenna |
| Keyword(2) | Beam waveguide feeds |
| Keyword(3) | Transmission phase |
| Keyword(4) | Measurement |
| 1st Author's Name | Shin-ichi Yamamoto |
| 1st Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 2nd Author's Name | Hiroto Ado |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 3rd Author's Name | Ryuya Seki |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 4th Author's Name | Yasuhiro Nishioka |
| 4th Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| Date | 2022-11-18 |
| Paper # | EMT2022-64 |
| Volume (vol) | vol.122 |
| Number (no) | EMT-256 |
| Page | pp.pp.111-116(EMT), |
| #Pages | 6 |
| Date of Issue | 2022-11-10 (EMT) |