Vectorially Combined Distributed Power Amplifiers for Software-Defined Radio Applications
Vectorially Combined Distributed Power Amplifiers for Software-Defined Radio Applications
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DOI：
10.1109/tmtt.2012.2207914
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发表时间：
2012-07
影响因子：
4.3
通讯作者：
K. Narendra;E. Limiti;C. Paoloni;J. Collantes;R. Jansen;S. Yarman
中科院分区：
文献类型：
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作者：
K. Narendra;E. Limiti;C. Paoloni;J. Collantes;R. Jansen;S. Yarman
提出了一种最大化DC-RF转换的分布式功率放大器（DPA）设计新技术。该拓扑的特点是当晶体管由其分布式输出网络加载时，输出电流源的矢量组合。为了验证设计概念，两个原型DPA（600-mW的赝晶HEMT（pHEMT）DPA和~ 23-W的pHEMT/GaN DPA）的设计，实现，建造和测试。据作者所知，第二个DPA实现了最先进的功率性能（即，输出功率、增益和效率的组合），非常适合软件定义的无线电应用。
A new technique for distributed power amplifier (DPA) design maximizing dc-RF conversion is presented. The topology is featured by the vectorial combination of the output current sources when the transistors are loaded by their distributed output networks. To verify the design concept, two prototype DPAs (a 600-mW pseudomorphic HEMT (pHEMT) DPA and a ~ 23-W pHEMT/GaN DPA) are designed, realized, built, and tested. To the authors' knowledge, the second DPA achieved state-of-the-art power performance (i.e., the combination of output power, gain, and efficiency) for DPAs within the frequency range up to 2 GHz, well suited for software-defined radio applications.