The MICROWAVE TRANSISTOR is a non linear electronic device which principle of operation is similar to that of the low-frequency device. Microwave transistor amplifier design have a more complicated reverse current flow which requires biasing the transistor into the active region of performance and holding this bias or quiescent point constant over variations of temperature.
The following file provides detail yet comprehensive information regarding the introduction to Microwave Transistor Amplifier Circuit Design. These include:
Temperature Sensitive DC Parameters
RF Sensitivity of HP Microwave Transistor
Suggested BIAS Circuits
Microwave Transistor Stability Factors