| Presentation | 2017-05-19 Ku-band Vector-Sum Phase Shifter Using LC-Type PPF With Adjustable Operating Frequency Takanobu Fujiwara, Koji Tsutsumi, Mitsuhiro Shimozawa, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently many vector-sum phase shifters designed with cost-effective silicon process have been reported, featuring their excellent phase error performance [1,2]. In the reported vector-sum phase shifters, RC-PPF (Resister and Capacitor type Poly Phase Filter) are commonly used as a quadrature signal generator. However RC-PPF tends to have small gain and large noise due the loss of resisters inside PPF. It leads to the deteriorated performance of phase shifter and limits the application of this circuit. In order to improve gain and noise performance of phase shifter, we propose LC-PPF (Inductor and Capacitor type PPF) where no resister is used. Also in order to overcome the disadvantage of LC-PPF in terms of narrower bandwidth for quadrature signal generation, an adaptive biasing technique was introduced to active circuit part of the phase shifter. For the proof of concept, we fabricated Ku-band vector-sum phase shifter with LC-PPF using 65nm CMOS process, and successfully demonstrated that the proposed technique works for better gain and less noise by 3dB, and operating frequency of more than 10%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Phase Shifter / Poly Phase Filter / Quadrature Signal / APAA / フェーズドアレー / Phase Error / Tunable |
| Paper # | MW2017-20 |
| Date of Issue | 2017-05-11 (MW) |
| Conference Information | |
| Committee | MW |
|---|---|
| Conference Date | 2017/5/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Chair | Yohei Ishikawa(Kyoto Univ.) |
| Vice Chair | Takao Kuki(Kokushikan Univ.) / Kenjiro Nishikawa(Kagoshima Univ.) / Kenichi Tajima(Mitsubishi Electric) |
| Secretary | Takao Kuki(Panasonic) / Kenjiro Nishikawa(Tokyo Inst. of Tech.) / Kenichi Tajima |
| Assistant | Naoto Sekiya(Univ. of Yamanashi) / Satoshi Ono(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ku-band Vector-Sum Phase Shifter Using LC-Type PPF With Adjustable Operating Frequency |
| Sub Title (in English) | |
| Keyword(1) | Phase Shifter |
| Keyword(2) | Poly Phase Filter |
| Keyword(3) | Quadrature Signal |
| Keyword(4) | APAA |
| Keyword(5) | フェーズドアレー |
| Keyword(6) | Phase Error |
| Keyword(7) | Tunable |
| 1st Author's Name | Takanobu Fujiwara |
| 1st Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 2nd Author's Name | Koji Tsutsumi |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 3rd Author's Name | Mitsuhiro Shimozawa |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| Date | 2017-05-19 |
| Paper # | MW2017-20 |
| Volume (vol) | vol.117 |
| Number (no) | MW-34 |
| Page | pp.pp.71-76(MW), |
| #Pages | 6 |
| Date of Issue | 2017-05-11 (MW) |