摘要
采用模拟退火算法提取出异质结双极晶体管器件的大信号 Gum mel- Poon模型参数 ,利用所提取出的模型参数设计出具有很低静态功耗的 190 0 MHz两级 AB类功率放大器 .该功放的功率增益为 2 6 d B,1d B压缩点输出功率为 2 8d Bm,对应的功率附加效率和邻近信道功率比分别为 38.8%、- 30 .5 d Bc,1d B压缩点处的各阶谐波功率均小于 - 4 0 d Bc.
The method to extract HBT large-signal Gummel-Poon model parameters with simulated annealing algorithm is discussed.These parameters extracted are used for a design of 1900MHz two-stage class AB power amplifier with very low quiescent power consumption.The gain of the P _A is 26dB.Its output 1dB compression point is 28dBm.At this point the power-added efficiency and ACPR are 38 8%,-30 5dBc respectively.All harmonic powers are below -40dBc when P _ out is below 28dBm.
基金
国家重点基础研究发展规划 (编号 :2 0 0 0 0 0 683 0 40 3 )
中国科学院 (编号 :KGX2 -10 1)资助项目~~
