| Presentation | 2019-11-15 Design of Wideband Microstrip Filtering Antenna with Transmission Zeros Ilsub Song, Masataka Ohira, Zhewang Ma, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose and design a new structure of microstrip filtering antenna having both a wideband and flat in-band gain characteristic and a high skirt selectivity because of the generation of transmission zeros. Although conventional filtering antennas can realize a wideband passband response and can also generate transmission zeros at stopbands, it is hard to design transmission zeros at specified frequencies owing to their physical structures. Furthermore, the in-band gain response is greatly degraded by frequency dependency of multiple resonance modes. To solve the problems, this paper introduces a step-impedance open stub for the generation of transmission zeros, and employs a single patch antenna for a wideband and flat in-band gain. As an example, we design a fifth-order microstrip filtering antenna with center frequency of 4 GHz, fractional bandwidth of 20%, and transmission zeros. The effectiveness of the proposed filtering antenna is verified by EM-simulated reflection and radiation characteristics. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | filtering antenna / transmission zeros / wideband bandpass filter |
| Paper # | MW2019-112 |
| Date of Issue | 2019-11-07 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2019/11/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Minami Daido Villa. Tamokuteki Koryu Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) |
| Secretary | Tadashi Kawai(Utsunomiya Univ.) / Kensuke Okubo(Fujitsu Labs.) / Shintaro Shinjo |
| Assistant | Satoshi Yoshida(Kagoshima Univ.) / Kyoya Takano(Tokyo Univ. of Science) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of Wideband Microstrip Filtering Antenna with Transmission Zeros |
| Sub Title (in English) | |
| Keyword(1) | filtering antenna |
| Keyword(2) | transmission zeros |
| Keyword(3) | wideband bandpass filter |
| 1st Author's Name | Ilsub Song |
| 1st Author's Affiliation | Saitama University(Saitama Univ.) |
| 2nd Author's Name | Masataka Ohira |
| 2nd Author's Affiliation | Saitama University(Saitama Univ.) |
| 3rd Author's Name | Zhewang Ma |
| 3rd Author's Affiliation | Saitama University(Saitama Univ.) |
| Date | 2019-11-15 |
| Paper # | MW2019-112 |
| Volume (vol) | vol.119 |
| Number (no) | MW-292 |
| Page | pp.pp.71-76(MW), |
| #Pages | 6 |
| Date of Issue | 2019-11-07 (MW) |