| Presentation | 2018-11-15 2-GHz-Band GaN HEMT Class-F Power Amplifiers Using CRLH-Transmission-Line-Stub Dual-Use Circuits for Harmonic Control and DC Biasing Tomoya Oda, Kento Saiki, Shinichi Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The next generation mobile communication systems impose challenging performance, size and cost requirements on the power amplifiers. This paper presents novel DC-biasing circuits, which are compact and yet can control the harmonics almost arbitrarily, thereby allowing to save the space for additional harmonic tuning circuit. The proposed circuit consists of a composite right-/left-handed (CRLH) transmission line (TL) stub, of which the size and harmonic-control function can be tuned by modifying the dispersion diagram of the stub line. As a proof of concept, a compact 2-GHz 6-W GaN HEMT class-F PA using the versatile CRLH-TL stubs was fabricated, demonstrating 88.1% drain efficiency and 76.1% power-added efficiency. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | amplifier / class-F / harmonic tuning / biasing circuit / CRLH / power efficiency |
| Paper # | MW2018-92 |
| Date of Issue | 2018-11-08 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2018/11/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukue Cultural Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Chair | Masahiro Muraguchi(TUS) |
| Vice Chair | Yoshinori Kogami(Utsunomiya Univ.) / Hiroshi Okazaki(NTT DOCOMO) / Kenichi Tajima(Mitsubishi Electric) |
| Secretary | Yoshinori Kogami(HITACHI) / Hiroshi Okazaki(Utsunomiya Univ.) / Kenichi Tajima |
| Assistant | Mizuki Motoyoshi(Tohoku Univ.) / Satoshi Yoshida(Kagoshima Univ.) |
| 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) | 2-GHz-Band GaN HEMT Class-F Power Amplifiers Using CRLH-Transmission-Line-Stub Dual-Use Circuits for Harmonic Control and DC Biasing |
| Sub Title (in English) | |
| Keyword(1) | amplifier |
| Keyword(2) | class-F |
| Keyword(3) | harmonic tuning |
| Keyword(4) | biasing circuit |
| Keyword(5) | CRLH |
| Keyword(6) | power efficiency |
| 1st Author's Name | Tomoya Oda |
| 1st Author's Affiliation | Shibaura Institute of Technology(Shibaura Inst. of Tech.) |
| 2nd Author's Name | Kento Saiki |
| 2nd Author's Affiliation | Shibaura Institute of Technology(Shibaura Inst. of Tech.) |
| 3rd Author's Name | Shinichi Tanaka |
| 3rd Author's Affiliation | Shibaura Institute of Technology(Shibaura Inst. of Tech.) |
| Date | 2018-11-15 |
| Paper # | MW2018-92 |
| Volume (vol) | vol.118 |
| Number (no) | MW-308 |
| Page | pp.pp.1-6(MW), |
| #Pages | 6 |
| Date of Issue | 2018-11-08 (MW) |