Abstract3.1 Doherty Amplifier With Asymmetric Vds3.2 Optimized Design of GaN HEMT Doherty Power Amplifier With High Gain and High Efficiency3.3 Optimized Peaking Amplifier Design for Doherty Amplifier3.4 Saturated Doherty Amplifier3.5 Average Power Tracking Operation of Basestation Doherty Amplifier