totowo
Member level 1
In Raab's classical paper 'idealized operation of the class E tuned power amplifier', a conclusion is that the normalized Pmax=0.0981 (Pmax @ClassA= 0.125). That means the PUF=Prf/Plin < 1
While in Steve Cripps's book <RF Power Amplifier for Wireless Communications>, the PUF of class E is -4sin(beta)/(1-sin(beta)), where beta is in fourth quadrant, so that the PUF can be larger than 1.
Is there anyone can explain the difference for me?
While in Steve Cripps's book <RF Power Amplifier for Wireless Communications>, the PUF of class E is -4sin(beta)/(1-sin(beta)), where beta is in fourth quadrant, so that the PUF can be larger than 1.
Is there anyone can explain the difference for me?