Device and circuit approaches for improved wireless communications transmitters

Next-generation wireless communication will require improved transmitter te chnology for a variety of applications, from advanced handsets to improved base stations. The UCSD Center for Wireless Communications has embarked on an ambitious program to develop improved power amplifier devices, architect ures, and circuits for next-generation wireless communications applications . This article summarizes some emerging power-amplifier technologies for futu re communication systems, including new linearization approaches, power man agement techniques, and new semiconductor devices.