Hi,
I has to design a RF power amplifier.
Here are some specifications:
+ Center frequency: 1.575GHz
+ Banwidth: 20MHz
+ Power gain: 50dB
+ Vdd = 1 or 1.2V
+Use CMOS TSMC0.13um
These are just some requirements now.
I have little experience in this field and at present I am learning basic things from "RF microelectronics" by Razavi, RF Power Amplifiers by Dr. Marian K. Kazimierczuk and The Design of CMOS Radio-Frequency by Thomas H. Lee.
Now I understand some basic about classes of power amplifier A, B, AB, C, D, E, F. But I am confused about what class should I choose for my project? As I read class A has high linearity but very low efficiency. Class D, E, F has high efficiency but low linearity. My main purpose is power gain 50dB. I can't figure out what class should I consider.
Please advise. Thanks.