| Presentation | 2023-03-16 Operating Analysis of Doherty-Outphasing Hybrid Power Amplifier on Saturation Region Daisuke Yasunobu, Ren Furumoto, kenjirou Nishikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In WiCoPT systems, which can transmit information and power simultaneously, modulated signals with high PAPR are used. Therefore, a transmitter in a WiCoPT system requires a power amplifier with wide dynamic range, wide bandwidth, and high efficiency. This paper reports the results of an operational analysis of a hybrid amplifier with Outphasing operation on the high output side and Doherty operation on the low output side to improve the performance in the saturation region. load-pull simulations of a symmetrical Doherty amplifier with 50 Ω input and output were performed to obtain the optimal impedance of the amplifier was obtained. Using the results, a Chireix combiner based on the impedance optimized at the saturated output point with maximum backoff efficiency and higher output power is realized. Simulation analysis of a hybrid amplifier using the above Chireix combiner shows that the hybrid power amplifier can achieve a 1.2dB increase in saturation region without changing the parameters of the symmetric Doherty amplifier. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless Communication and Power Transmission(WiCOPT) / Doherty amplifier / Load-Pull / Outphasing amplifier / Chireix combiner / Hybrid amplifier |
| Paper # | WPT2022-33 |
| Date of Issue | 2023-03-09 (WPT) |
| Conference Information | |
| Committee | WPT |
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| Conference Date | 2023/3/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto-Univ. (Uji campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | SSPS Technology, General WPT |
| Chair | Kenjiro Nishikaa(Kagoshima Univ.) |
| Vice Chair | Hiroshi Hirayama(Nagoya Inst. of Tech.) |
| Secretary | Hiroshi Hirayama(UL Japan) |
| Assistant | Asako Suzuki(Fujiwaves) / Yuki Tanaka(Panasonic) |
| Paper Information | |
| Registration To | Technical Committee on Wireless Power Transfer |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Operating Analysis of Doherty-Outphasing Hybrid Power Amplifier on Saturation Region |
| Sub Title (in English) | |
| Keyword(1) | Wireless Communication and Power Transmission(WiCOPT) |
| Keyword(2) | Doherty amplifier |
| Keyword(3) | Load-Pull |
| Keyword(4) | Outphasing amplifier |
| Keyword(5) | Chireix combiner |
| Keyword(6) | Hybrid amplifier |
| 1st Author's Name | Daisuke Yasunobu |
| 1st Author's Affiliation | Kagoshima University(Kagoshima Univ.) |
| 2nd Author's Name | Ren Furumoto |
| 2nd Author's Affiliation | Kagoshima University(Kagoshima Univ.) |
| 3rd Author's Name | kenjirou Nishikawa |
| 3rd Author's Affiliation | Kagoshima University(Kagoshima Univ.) |
| Date | 2023-03-16 |
| Paper # | WPT2022-33 |
| Volume (vol) | vol.122 |
| Number (no) | WPT-443 |
| Page | pp.pp.14-18(WPT), |
| #Pages | 5 |
| Date of Issue | 2023-03-09 (WPT) |