| Paper Abstract and Keywords |
| Presentation |
2007-01-19 10:10
A Distortion-Cancelled Doherty 28V Operated 330W GaAs Heterojunction FET Power Amplifier for Cellular Base Stations
Isao Takenaka, Koji Ishikura, Hidemasa Takahashi, Koichi Hasegawa, Takashi Ueda, Toshimichi Kurihara, Kazunori Asano, Naotaka Iwata (NEC Electronics) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (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) |
| (in English) |
Distortion cancellation / Doherty amplifier / efficiency / heterojunction field-effect-transistor / high power / wideband code division multiple access (W-CDMA) / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 459, ED2006-227, pp. 149-154, Jan. 2007. |
| Paper # |
ED2006-227 |
| Date of Issue |
2007-01-10 (ED, MW) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
MW ED |
| Conference Date |
2007-01-17 - 2007-01-19 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
|
| Paper Information |
| Registration To |
ED |
| Conference Code |
2007-01-MW-ED |
| Language |
Japanese |
| 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) |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Isao Takenaka |
| 1st Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 2nd Author's Name |
Koji Ishikura |
| 2nd Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 3rd Author's Name |
Hidemasa Takahashi |
| 3rd Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 4th Author's Name |
Koichi Hasegawa |
| 4th Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 5th Author's Name |
Takashi Ueda |
| 5th Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 6th Author's Name |
Toshimichi Kurihara |
| 6th Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 7th Author's Name |
Kazunori Asano |
| 7th Author's Affiliation |
NEC Electronics (NEC Electronics) |
| 8th Author's Name |
Naotaka Iwata |
| 8th Author's Affiliation |
NEC Electronics (NEC Electronics) |
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| Speaker |
Author-1 |
| Date Time |
2007-01-19 10:10:00 |
| Presentation Time |
25 minutes |
| Registration for |
ED |
| Paper # |
ED2006-227, MW2006-180 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.459(ED), no.460(MW) |
| Page |
pp.149-154 |
| #Pages |
6 |
| Date of Issue |
2007-01-10 (ED, MW) |