I recently found out that IEEE now offers online short courses on variety of subjects ranging from Aerospace to Robotics. In particular, they offer several online courses on Communications and Mirowave Theory & Techniques. One course that I highly recommend is “Basics of RF Power Amplifier (PA) Design,” by Steve C. Cripps for those who are interested in getting into active RF components. The PA is the most expensive part of a communication system, so demand for microwave engineers with background or knowledge of PAs is very high. In addition, Dr. Cripps has authored two highly regarded books on PA design (RF Power Amplifiers for Wireless Communications and