厦门大学学报（自然科学版）2011，Vol.50Issue(4)：729-733,5.
基于ADS平台反向Doherty结构的功率放大器的设计与仿真
Using ADS to Design and Simulation of an Inverted Doherty Amplifier
张敏翔 1汤碧玉 1吴晓芳 1方志远 1薛财锋1
作者信息
- 1. 厦门大学信息科学与技术学院,福建厦门361005
- 折叠
摘要
Abstract
We use ADS platform to design and simulation of a uneven power drive inverted Doherty amplifier (IDPA). It is suitable for WCDMA base-station applications at 2. 14 GHz. The inverted Doherty amplifier through the microstrip line after the peaking amplifier output network to improve power leakage and efficiency. This configuration have a good compromise of efficiency and linearity to optimum the peaking amplifier gate bias voltage at 0. 9 V,carrier amplifier gate bias voltage at 2. 74 V,and using 1 ? 2. 07 uneven power drive to IDPA. At an output power of 44 dBm.the IDPA perform with 9. 63% higher power-added efficiency (25. 26% versus 15. 63%)and 3. 34 dBc better third-order intermodulation distortion( - 40. 82 dBc versus -37. 48 dBc) than the balanced class-AB amplifier, and 1. 12% higher power-added efficiency (25. 26% versus 24. 14%) than the conventional Doherty amplifier(DPA) does. It can indicate that this simple configuration is suitable for modern wireless communication systems.关键词
反向Doherty功率放大器/ADS/功率附加效率/三阶互调失真/不对称功率驱动Key words
inverted Doherty power amplifier/ ADS/ power-added efficiency/ third-order intermodulation distortion/uneven power drive分类
信息技术与安全科学引用本文复制引用
张敏翔,汤碧玉,吴晓芳,方志远,薛财锋..基于ADS平台反向Doherty结构的功率放大器的设计与仿真[J].厦门大学学报（自然科学版）,2011,50(4):729-733,5.
