| Presentation | 2021-11-11 Prototype Evaluation of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna Toshiki Soma, Keizo Cho, Naobumi Michishita, Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima, Hiroaki Nakabayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multi-band base station antennas have the problem that interference to adjacent areas increases in the low frequency band due to differences in electrical aperture. To solve this problem, a phase shifter has been proposed that can tilt the beam direction of the 1.5 GHz band deeper by using the phase dispersion characteristics of the CRLH transmission line, assuming an antenna that shares the 1.5 GHz band and the 2.0 GHz band. In addition, a concrete structure including the matching circuit has been designed by full-wave analysis. This paper describes the results of evaluating the proposed phase shifter design by measuring several prototypes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multi-band antenna / base station antenna / beam tilt / CRLH transmission line / frequency dispersion |
| Paper # | AP2021-110 |
| Date of Issue | 2021-11-03 (AP) |
| Conference Information | |
| Committee | AP / RCS |
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| Conference Date | 2021/11/10(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NBC-Bekkan (Nagasaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Hiroshi Yamada(Niigata Univ.) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Mitoshi Fujimoto(Fukui Univ) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Mitoshi Fujimoto(NTT DOCOMO) / Toshihiko Nishimura(National Defense Academy) / Tomoya Tandai(NEC) / Fumihide Kojima(Panasonic) |
| Assistant | Dr. Kim(Niigata Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Prototype Evaluation of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna |
| Sub Title (in English) | |
| Keyword(1) | multi-band antenna |
| Keyword(2) | base station antenna |
| Keyword(3) | beam tilt |
| Keyword(4) | CRLH transmission line |
| Keyword(5) | frequency dispersion |
| 1st Author's Name | Toshiki Soma |
| 1st Author's Affiliation | Chiba Institute of Technology(Chiba Inst. Tech.) |
| 2nd Author's Name | Keizo Cho |
| 2nd Author's Affiliation | Chiba Institute of Technology(Chiba Inst. Tech.) |
| 3rd Author's Name | Naobumi Michishita |
| 3rd Author's Affiliation | National Defense Academy(National Defense Academy) |
| 4th Author's Name | Takayoshi Sasaki |
| 4th Author's Affiliation | DKK Co., Ltd.(DKK) |
| 5th Author's Name | Keisuke Sato |
| 5th Author's Affiliation | DKK Co., Ltd.(DKK) |
| 6th Author's Name | Ichiro Oshima |
| 6th Author's Affiliation | DKK Co., Ltd.(DKK) |
| 7th Author's Name | Hiroaki Nakabayashi |
| 7th Author's Affiliation | Chiba Institute of Technology(Chiba Inst. Tech.) |
| Date | 2021-11-11 |
| Paper # | AP2021-110 |
| Volume (vol) | vol.121 |
| Number (no) | AP-233 |
| Page | pp.pp.56-60(AP), |
| #Pages | 5 |
| Date of Issue | 2021-11-03 (AP) |