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This book focuses on high performance radio frequency integrated circuits (RF IC) design in CMOS. 1. Development of radio frequency ICs Wireless communications has been advancing rapidly in the past two decades. Many high performance systems have been developed, such as cellular systems (AMPS, GSM, TDMA, CDMA, W-CDMA, etc. ), GPS system (global po- tioning system) and WLAN (wireless local area network) systems. The rapid growth of VLSI technology in both digital circuits and analog circuits provides benefits for wireless communication systems. Twenty years ago not many p- ple could imagine...

This monograph presents techniques to improve the performance of linear integrated circuits (IC) in CMOS at high frequencies. A novel linearization technique is presented in this book, which shows that with a small trade-off of gain and power consumption this technique can improve the linearity of the majority of circuits by tens of dB. A new class of power amplifier (parallel class A & B) is also presented to extend the linear operation range and save the DC power consumption.