| Presentation | 2019-09-20 Design and Experimental Evaluation of Wideband Microstrip Filtenna Based on Wideband Transmission Line Bandpass Filter Masataka Ohira, Yusuke Suzuki, Zhewang Ma, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, a filtering antenna or filtenna is becoming one of the attractive circuits that can be designed with a well-established circuit synthesis theory of microwave bandpass filters (BPFs). To realize a wideband response, however, there are two problems: one is a theoretical problem that a narrow-band approximation cannot be applied to a wideband filter synthesis, and the other is an antenna design issue that the realization of both a low radiation Q factor and a unidirectional radiation pattern are required. To solve the former one, this paper introduces a filter synthesis approach of a wideband transmission-line based BPF, and proposes a microstrip filtenna consisting of two dielectric substrates individually constituting resonators and antenna to solve the latter one. We design a wideband fifth-order microstrip filtenna under the specifications of center frequency 4 GHz and fractional bandwidth 20%. As a result, it can be numerically and experimentally confirmed that the designed filtenna provides the specified wide passband, a unidirectional radiation pattern in band, and good skirt selectivity out of band. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ｆiltering antenna / wideband bandpass filter / radiation Q factor / circuit synthesis |
| Paper # | MW2019-58 |
| Date of Issue | 2019-09-12 (MW) |
| Conference Information | |
| Committee | MW / AP |
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| Conference Date | 2019/9/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | JAXA (Sagamihara) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave, Millimeter wave, Antennas and Propagation |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) / Qiang Chen(Tohoku Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) / Satoru Kurokawa(AIST) |
| Secretary | Tadashi Kawai(Utsunomiya Univ.) / Kensuke Okubo(Fujitsu Labs.) / Shintaro Shinjo(Mitsubishi Electric) / Satoru Kurokawa(Tokyo Univ. of Agric. & Tech.) |
| Assistant | Satoshi Yoshida(Kagoshima Univ.) / Kyoya Takano(Tokyo Univ. of Science) / Michitaka Ameya(AIST) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / 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) | Design and Experimental Evaluation of Wideband Microstrip Filtenna Based on Wideband Transmission Line Bandpass Filter |
| Sub Title (in English) | |
| Keyword(1) | ｆiltering antenna |
| Keyword(2) | wideband bandpass filter |
| Keyword(3) | radiation Q factor |
| Keyword(4) | circuit synthesis |
| 1st Author's Name | Masataka Ohira |
| 1st Author's Affiliation | Saitama University(Saitama Univ.) |
| 2nd Author's Name | Yusuke Suzuki |
| 2nd Author's Affiliation | Saitama University(Saitama Univ.) |
| 3rd Author's Name | Zhewang Ma |
| 3rd Author's Affiliation | Saitama University(Saitama Univ.) |
| Date | 2019-09-20 |
| Paper # | MW2019-58 |
| Volume (vol) | vol.119 |
| Number (no) | MW-204 |
| Page | pp.pp.17-22(MW), |
| #Pages | 6 |
| Date of Issue | 2019-09-12 (MW) |