How to design a good RF PA?

I am a new comer for rf pa.
Can anyone give some suggestion? or recommend any books?
Thanks much!

This is a good book to start.

S. CRIPP. "RF -Power Amplifiers for Wireless Communications", Artech House.

Thanks!
What are the new development for RFPA?How to improve the performance of rfpa at present?

u can refer to
"rf power amplifier"design by crippes(2 different books)
"Linear rf amplifier design "by peter kennigton
Rf power amp by ALBULET
Rf PA by razzavi

Hi, Boy,

Could I find the e-book about "S. CRIPP. "RF -Power Amplifiers for Wireless Communications", Artech House"

Thanks!

u can find it at
http://file.21ic.com.cn/RFDesign/

learning +practice