Since the release of ADS 2009 Update 1, we have improved the ADS Load Pull DesignGuide. We have added many new simulation setups and data displays. These make it easier for you to more easily and completely explore the design space and clearly see performance trade-offs, enabling you to attain optimal performance from your power amplifier designs.
For more information: http://www.keysight.com/find/eesof-ads
For a free evaluation copy of ADS: http://www.keysight.com/find/eesof-ads-latest-downloads