Before revision: Current research focuses on integrating the RF power amplifier (PA) with CMOS technology on RF CMOS mixed-signal integrated circuit chips , either by using MOSFETs or SiGe HBTs .
After revision: Current research focuses on integrating the RF power amplifier (PA) with CMOS technology , on RF CMOS mixed-signal integrated circuit chips , either by using MOSFETs or SiGe HBTs .