| Presentation | 2019-11-21 Evaluation method of axial ratio using only the reflection coefficient of waveguide circular polarizer Shin-ichi Yamamoto, Yuya Ida, Michio Takikawa, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A circularly polarized feed circuit in a primary radiator of a reflector antenna is often required to have a low axial ratio. Therefore, it is necessary to accurately evaluate the axial ratio. The left- and right-handed circular polarized components are numerically obtained from the complex coefficients measured for dual linear polarized waves. The transmission phase measurement is difficult to measure accurately, particularly at high frequencies such as Ka band. Authors proposed a method to measure the axial ratio of the circular polarization feeding circuit from the reflection coefficient only, and the proposed method has been validated by the numerical simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Axial ratio / Circular polarization / Feed circuit / Measurement |
| Paper # | AP2019-120 |
| Date of Issue | 2019-11-13 (AP) |
| Conference Information | |
| Committee | AP / RCS |
|---|---|
| Conference Date | 2019/11/20(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Saga Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Qiang Chen(Tohoku Univ.) / Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Satoru Kurokawa(AIST) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) |
| Secretary | Satoru Kurokawa(Mitsubishi Electric) / Satoshi Suyama(Tokyo Univ. of Agric. & Tech.) / Fumiaki Maehara(NTT) / Toshihiko Nishimura(Kyushu Univ.) |
| Assistant | Michitaka Ameya(AIST) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Doshisha Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation method of axial ratio using only the reflection coefficient of waveguide circular polarizer |
| Sub Title (in English) | |
| Keyword(1) | Axial ratio |
| Keyword(2) | Circular polarization |
| Keyword(3) | Feed circuit |
| Keyword(4) | Measurement |
| 1st Author's Name | Shin-ichi Yamamoto |
| 1st Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corporation) |
| 2nd Author's Name | Yuya Ida |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corporation) |
| 3rd Author's Name | Michio Takikawa |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corporation) |
| Date | 2019-11-21 |
| Paper # | AP2019-120 |
| Volume (vol) | vol.119 |
| Number (no) | AP-295 |
| Page | pp.pp.81-86(AP), |
| #Pages | 6 |
| Date of Issue | 2019-11-13 (AP) |