| Presentation | 2007-01-19 A Distortion-Cancelled Doherty 28V Operated 330W GaAs Heterojunction FET Power Amplifier for Cellular Base Stations Isao TAKENAKA, Kohji ISHIKURA, Hidemasa TAKAHASHI, Kouichi HASEGAWA, Takashi UEDA, Toshimichi KURIHARA, Kazunori ASANO, Naotaka IWATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A low distortion Doherty high-power amplifier has been developed for cellular base stations. The amplifier delivered 330W-saturated output-power at 2.14GHz with a pair of 28V operated 150W GaAs heterojunction field-effect-transistors. Utilizing the distortion cancellation effect between the main and the peak amplifiers in Doherty configuration, it demonstrated low third order intermodulation of -37dBc with a high drain efficiency of 42% at an output power of 49dBm around 6dB back-off level under the two-carrier wideband code division multiple access (W-CDMA) signals of 2.135GHz and 2.145GHz. In addition, we proposed the evaluation techniques to obtain each AM-AM and AM-PM characteristics of the main and the peak amplifiers in an operating Doherty amplifier, and experimentally proved the distortion cancellation effect in the GaAs FET Doherty amplifier. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Distortion cancellation / Doherty amplifier / efficiency / heterojunction field-effect-transistor / high power / wideband code division multiple access (W-CDMA) |
| Paper # | ED2006-227,MW2006-180 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2007/1/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | A Distortion-Cancelled Doherty 28V Operated 330W GaAs Heterojunction FET Power Amplifier for Cellular Base Stations |
| Sub Title (in English) | |
| Keyword(1) | Distortion cancellation |
| Keyword(2) | Doherty amplifier |
| Keyword(3) | efficiency |
| Keyword(4) | heterojunction field-effect-transistor |
| Keyword(5) | high power |
| Keyword(6) | wideband code division multiple access (W-CDMA) |
| 1st Author's Name | Isao TAKENAKA |
| 1st Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation() |
| 2nd Author's Name | Kohji ISHIKURA |
| 2nd Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| 3rd Author's Name | Hidemasa TAKAHASHI |
| 3rd Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| 4th Author's Name | Kouichi HASEGAWA |
| 4th Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| 5th Author's Name | Takashi UEDA |
| 5th Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| 6th Author's Name | Toshimichi KURIHARA |
| 6th Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| 7th Author's Name | Kazunori ASANO |
| 7th Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| 8th Author's Name | Naotaka IWATA |
| 8th Author's Affiliation | Compound Semiconductor Device Division, NEC Electronics Corporation |
| Date | 2007-01-19 |
| Paper # | ED2006-227,MW2006-180 |
| Volume (vol) | vol.106 |
| Number (no) | 460 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |