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

作　　者：席天佐 黄鲁 郑重 冯立松 

机构地区：[1]Department of Electronic Science and Technology,University of Science and Technology of China

出　　处：《Journal of Semiconductors》2010年第4期76-79,共4页半导体学报（英文版）

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

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.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.

关 键 词：PA UWB group delay LINEARITY 

分 类 号：TN722.75[电子电信—电路与系统]