| Presentation | 2023-01-27 Design of Parasitic-Element Loaded Wideband Filtering Antenna with Unidirectional Radiation Pattern over 30% Frequency Bandwidth Ken Sakiyama, 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 a new structure of wideband filtering antenna that realizes a very flat in-band gain and unidirectional radiation pattern over 30% frequency bandwidth. In conventional wideband filtering antenna, a fractional bandwidth of over 20% is difficult to realize because a single patch has a lower limit of radiation Q factor. To solve the problem, we propose a new wideband filtering antenna loading a parasitic element. As an example, we design two fifth-order filtering antennas with center frequency of 4.0 GHz and fractional bandwidth of 30% and 40%. The effectiveness of the proposed filtering antenna is verified by comparing the reflection and radiation characteristics between the measured results and the EM simulated ones. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | filtering antenna / radiation Q factor / microstrip antenna / parasitic element |
| Paper # | ED2022-87,MW2022-146 |
| Date of Issue | 2023-01-20 (ED, MW) |
| Conference Information | |
| Committee | MW / ED |
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| Conference Date | 2023/1/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Noriharu Suematsu(Tohoku Univ.) / Hiroki Fujishiro(Tokyo Univ. of Science) |
| Vice Chair | Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Hideyuki Nakamizo(Mitsubishi Electric) / Seiya Sakai(Hokkaido Univ.) |
| Secretary | Tadashi Kawai(Univ. of Electro-Comm) / Kensuke Okubo(Toshiba) / Hideyuki Nakamizo(Saga Univ.) / Seiya Sakai(NTT) |
| Assistant | Naoki Hasegawa(Softbank) / Kosuke Katayama(NIT Tokuyama College) / Masatoshi Koyama(Osaka Inst. of Tech.) / Yoshitugu Yamamoto(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves / Technical Committee on Electron Devices |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of Parasitic-Element Loaded Wideband Filtering Antenna with Unidirectional Radiation Pattern over 30% Frequency Bandwidth |
| Sub Title (in English) | |
| Keyword(1) | filtering antenna |
| Keyword(2) | radiation Q factor |
| Keyword(3) | microstrip antenna |
| Keyword(4) | parasitic element |
| 1st Author's Name | Ken Sakiyama |
| 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 | 2023-01-27 |
| Paper # | ED2022-87,MW2022-146 |
| Volume (vol) | vol.122 |
| Number (no) | ED-370,MW-371 |
| Page | pp.pp.7-12(ED), pp.7-12(MW), |
| #Pages | 6 |
| Date of Issue | 2023-01-20 (ED, MW) |