| Presentation | 2021-03-05 Design of Tunable Filtering Array Antenna with Constant Absolute Bandwidth Takuya Sakemoto, Masataka Ohira, Zhewang Ma, Akihiiro Yamada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, the demand for tunable antennas has been increasing with the rapid growing various wireless communication systems. In conventional works, the co-design approach of tunable bandpass filter and tunable antenna have been proposed to realize a variable frequency characteristic with a constant absolute bandwidth. However, such tunable filtering antennas have two main problems: 1) variable frequency range is narrow and 2) the beam width is wide because there is no beam-forming function. This paper proposes a new tunable filtering array antenna that can form a directional beam using a two-element array and has a wider variable frequency range than conventional tunable filtering antenna. As an example, we design a microstrip tunable filtering array antenna with a tunable range of 2.32-3.12 GHz (29.4%) and 150-MHz constant equiripple bandwidth. The effectiveness of the proposed tunable filtering array antenna is verified through the comparison of frequency-selective/tunable and radiation characteristics between EM simulated and measured results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Tunable antenna / filtering antenna / array antenna / absolute frequency bandwidth |
| Paper # | MW2020-91 |
| Date of Issue | 2021-02-26 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2021/3/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshinori Kogami(Utsunomiya Univ.) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric) |
| Secretary | Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo |
| Assistant | Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank) |
| 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 Tunable Filtering Array Antenna with Constant Absolute Bandwidth |
| Sub Title (in English) | |
| Keyword(1) | Tunable antenna |
| Keyword(2) | filtering antenna |
| Keyword(3) | array antenna |
| Keyword(4) | absolute frequency bandwidth |
| 1st Author's Name | Takuya Sakemoto |
| 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.) |
| 4th Author's Name | Akihiiro Yamada |
| 4th Author's Affiliation | Nippon Antenna Company Limited(Nippon Antenna) |
| Date | 2021-03-05 |
| Paper # | MW2020-91 |
| Volume (vol) | vol.120 |
| Number (no) | MW-422 |
| Page | pp.pp.1-6(MW), |
| #Pages | 6 |
| Date of Issue | 2021-02-26 (MW) |