An integrated wideband power amplifier for cognitive radio

被引：28
作者：
Chen, Yi-Jan Emery [1 ]
Yang, Li-Yuan
Yeh, Wei-Chih
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Elect Engn, Taipei 106, Taiwan
[2] United Microelect Corp, Hsinchu, Taiwan
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2007年 / 55卷 / 10期
关键词：
cognitive radio (CR); frequency agile; load-tracking; power amplifier (PA); pseudomorphic HEMT (pHEMT); software-defined radio (SDR); wideband;
D O I：
10.1109/TMTT.2007.906497
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents the development of the wideband power amplifier (PA) for application to intelligent cognitive radios. The load-tracking based on the frequency-varied load-pull technique is proposed for the PA design. The load impedance tracking is realized by filter network synthesis. A 3-7.5-GHz broadband IPA is demonstrated in 0.15-mu m InGaAs pseudomorphic HEMT technology. Operated at 3.5 V, the P-1 (dB) and power-added efficiency of the PA are better than 21.4 dBm and 20%, respectively.
引用
收藏
页码：2053 / 2058
页数：6
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