| Presentation | 2021-01-21 [Tutorial Lecture] Practical Decoupling Circuits for Two-Element Antenna Array Kengo Nishimoto, Hidetoshi Makimura, Yasuhiro Nishioka, Yoshio Inasawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents two types of practical decoupling circuits for two-element antenna arrays. The first is a small circuit consisting of two series susceptances and two shunt susceptances. This circuit can not only decrease the mutual coupling but also change the excitation distribution. The excitation amplitude ratio can be controlled by the shunt susceptance on the antenna side, and the excitation phase difference can be controlled by the ratio of the two series susceptances. We show design equations and confirm that the antenna gain can be improved only by the control of the excitation amplitude ratio. The second is a circuit consisting of two directional couplers, a transmission line and a shunt resonant circuit. This circuit can greatly decrease the mutual coupling over a wideband. We show the design method and confirm the effectiveness by simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Small antenna / Decoupling circuit / Two-element antenna array / Excitation distribution / Wideband |
| Paper # | AP2020-108 |
| Date of Issue | 2021-01-14 (AP) |
| Conference Information | |
| Committee | WPT / AP |
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| Conference Date | 2021/1/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toshio Ishizaki(Ryukoku Univ.) / Qiang Chen(Tohoku Univ.) |
| Vice Chair | / Satoru Kurokawa(AIST) |
| Secretary | (Nagasaki Univ.) / Satoru Kurokawa(Okayama Univ.) |
| Assistant | Osamu Kagaya(AGC) / Yoshiaki Narusue(Univ. of Tokyo) / Dr. Kim(Niigata Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Wireless Power Transfer / Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Tutorial Lecture] Practical Decoupling Circuits for Two-Element Antenna Array |
| Sub Title (in English) | |
| Keyword(1) | Small antenna |
| Keyword(2) | Decoupling circuit |
| Keyword(3) | Two-element antenna array |
| Keyword(4) | Excitation distribution |
| Keyword(5) | Wideband |
| 1st Author's Name | Kengo Nishimoto |
| 1st Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| 2nd Author's Name | Hidetoshi Makimura |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| 3rd Author's Name | Yasuhiro Nishioka |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| 4th Author's Name | Yoshio Inasawa |
| 4th Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| Date | 2021-01-21 |
| Paper # | AP2020-108 |
| Volume (vol) | vol.120 |
| Number (no) | AP-325 |
| Page | pp.pp.27-32(AP), |
| #Pages | 6 |
| Date of Issue | 2021-01-14 (AP) |