| Presentation | 2008-08-29 Doherty power amplifier using GaN class-E device Takaaki ISHIKAWA, Kazunori KASHIMURA, Eiki TAKAHASHI, Nobuyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A Doherty amplifier for base stations using an internally class-E matched GaN packaged device has been developed. The class-E packaged device achieves 74% drain efficiency at 80W (49dBm) output power under 10% duty pulsed operation. Considering that the load modulation of the carrier amplifier, we designed the internal matching circuit by a class-J concept. The Doherty amplifier for 2.14GHz band achieves 15.5dB gain and 58% CW drain efficiency at 6dB back-off from 170W (52.3dBm) saturated power. This paper also shows the load-pull results of the class-E device and the Digital Pre-Distortion (DPD) results of a multi-stage amplifier. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | class-E / Doherty power amplifier / GaN / DPD / Multistage power amplifier |
| Paper # | MW2008-101 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2008/8/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Doherty power amplifier using GaN class-E device |
| Sub Title (in English) | |
| Keyword(1) | class-E |
| Keyword(2) | Doherty power amplifier |
| Keyword(3) | GaN |
| Keyword(4) | DPD |
| Keyword(5) | Multistage power amplifier |
| 1st Author's Name | Takaaki ISHIKAWA |
| 1st Author's Affiliation | Japan Radio Co., Ltd.() |
| 2nd Author's Name | Kazunori KASHIMURA |
| 2nd Author's Affiliation | Japan Radio Co., Ltd. |
| 3rd Author's Name | Eiki TAKAHASHI |
| 3rd Author's Affiliation | Japan Radio Co., Ltd. |
| 4th Author's Name | Nobuyuki ADACHI |
| 4th Author's Affiliation | Japan Radio Co., Ltd. |
| Date | 2008-08-29 |
| Paper # | MW2008-101 |
| Volume (vol) | vol.108 |
| Number (no) | 195 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |