Its so impressive to see the amount of freeware now available to do RFMW design and development. From the “free-est” of freeware for RFMW ( APPAD) to many other packages. A harmonic balance tool is also available as freeware. The consequence is that we as design engineers do not always have to pay an arm and a leg to get the commercial packages ( of which there are few) and be hostages to these vendors. A lot of work can be done prior to spending umpteen dollars so that the cost can be lowered significantly.  Currently we have a few of these freeware tools under assessment and will be reporting on their performance in this blog.