While researching a piece of equipment from Ebay I ran across the Green Mountain Radio Research Company (click to open in new window). Dr Raab is an expert on RF power amplifiers and this is his consulting website. His article RF and Microwave Power Amplifier and Transmitter Technologies – Part 1 is a wealth of knowledge. It begins with a brief intoduction and history of power amplifiers and continues with linearity, efficiency, and RF power transistors. This article and the four parts that follow can be found on the High Frequency Electronics website. I am looking forward to finishing the series on PAs by Dr. Raab and digging through the extensive collection in the Article Archive of High Frequency Electronics.

RF and Microwave Power Amplifier and Transmitter Technologies  by Frederick H raab, et al.

Enjoy the read. 73

Robin