Patent ID: 8149064
Filing Date: 2012-04-03
Classification: H01L,H03F,H03K,Y10S

Abstract:
1. A method of providing a complementary metal oxide semiconductor (CMOS) RF power amplifier for a wireless transmission system comprising: forming RF power amplifier input stage circuitry using devices with a first gate oxide thickness; forming RF power amplifier output stage circuitry, the output stage circuitry having p-channel devices (PMOS), n-channel devices (NMOS), and an inductive network; forming the PMOS devices using devices with the first gate oxide thickness; forming the NMOS devices using devices with a second gate oxide thickness, wherein the first gate oxide thickness is less than the second gate oxide thickness; and selecting values of inductors in the inductive network and input capacitances of at least some of the devices in the output stage circuitry to distribute voltage swings across the NMOS and PMOS devices in such way that the NMOS devices are subjected to greater voltage swings than the PMOS devices.