A 3-5GHz CMOS UWB power amplifier with±8ps group delay ripple

作     者：席天佐 黄鲁 郑重 冯立松 

作者机构：Department of Electronic Science and TechnologyUniversity of Science and Technology of China 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2010年第31卷第4期

页      面：76-79页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080902[工学-电路与系统] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National High Technology Research and Development Program of China(No.2007AA01Z2b2) 

主　　题：PA UWB group delay linearity 

摘      要：A differential power amplifier （PA）, designed using the linear-phase filter model, for a BPSK modulated ultra-wideband （UWB） system operating in the 3-5 GHz frequency range is presented. The proposed PA was fabricated using 0.18μm SMIC CMOS technology. To achieve sufficient linearity and efficiency, this PA operates in the class-AB region, delivering an output power of 8.5 dBm at an input-1 dB compression point of-0.5 dBm. It consumes 28.8 mW, realizing a fiat gain of 9.11± 0.39 dB and a very low group delay ripple of ±8 ps across the whole band of operation.