In this paper, a high linearity, high efficiency 1.9 GHz power amplifier sub-system using a 50 mm AlGaAs/InGaAs/GaAs PHEMT for PHS 500 mW base station is demonstrated. Under 10 V and 3.8 A bias condition, the output stage amplifier has achieved 12.5 dB small-signal gain, 43.7 dBm P1dB with 43% PAE and 44 dBm saturated output power with 41% PAE. For the amplifier sub-system, the ACPR at 600 KHz and 900 KHz offset from 1.906 GHz when operating at 38.5 dBm output power with π/4-DQPSK signal are better than 75 dBc and 79 dBc, respectively.
|出版狀態||Published - 2004 十二月 1|
|事件||2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology - Tainan, Taiwan|
持續時間: 2004 十二月 6 → 2004 十二月 9
|Other||2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology|
|期間||04-12-06 → 04-12-09|
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering