RF_CMOS_Comes_of_AgeIEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 39, NO. 4, APRIL 2004 549 RF CMOS Comes of Age Asad A. Abidi, Fellow, IEEE Abstract―All-CMOS radio transceivers and systems-on-a-chip are rapidly making inroads into a wireless market that for years was dominated by bipolar and BiCMOS solutions. It is not a matter of replacing bipolar transistors in known circuit topologies with FETs; the wave of RF CMOS brings with it new architectures and unprecedented levels of integration. What are its origins? What is the commercial impact? How will RF CMOS evolve in the future? This paper offers a retrospective and a perspective. I. INTRODUCTION R ADIO-FREQUENCY (RF) integrated circuits in CMOS are developing a strong presence in the commercial world. For applications such as wireless LAN and Bluetooth,……