Date: 15/06/2012
Application note from AWR on circuit envelope simulation for 3G and 4G amplifier design
Current and emerging wireless systems place greater demands on RF power amplifiers, including exceptional linearity, efficiency, and bandwidth. The new application note from AWR entitled "Leverage Circuit Envelope Simulation to Improve PA Performance" describes circuit envelope simulation, now part of AWR 2011. This technique lets designers optimize performance between linearity, efficiency, and bandwidth from the device to the system level. It builds on SPICE time domain and harmonic balance frequency domain simulation to provide more than either one alone can achieve.
The white paper available online at http://web.awrcorp.com/content/Downloads/AWR-VSS-Envelope-White-Paper.pdf