Updated July 20,
here to go to our page on load pull
here to go to our page on power amplifiers
New for August 2009! This
page will explain the simple technique devised by Dr. Steve Cripps,
for predicting output power of microwave amplifiers based on load-line
analysis. The so-called Cripps technique has substituted for large-signal
models and load pull data quite successfully. Sometimes the simplest
ideas are the best ideas, and this is a case in point.
Dr. Cripps has two books on
microwave power amplifiers that you can find in any reputable engineering
RF Power Amplifiers for
Advanced Techniques in RF
Power Amplifier Design
Cripps first published his idea
in 1983 in A theory for the prediction of GaAs FET load-pull
power contours,” in the IEEE MTT Symposium Digest.
Here's a photo of Dr. Cripps
receiving a "best paper" award in 2003... probably not
his first, nor his last. You can read his resume
More to come!