Considering ,among others, an AVGO RF transistor biasing Application Note 1293, some questions arise for which I could find no answer.
The Vce of a variety of RF transistors at hand is 10 Volts. If I strictly follow the instructions of biasing RF and general purpose ones setting Vce to be 0.5 Vcc then Vcc has to be 20 Volts.
However I have been biasing RF transistors according to the Data sheets where Vce is 10 Volts but I used a power supple for Vcc 12 or 13.5 and sometimes 15 Volts and never 20 Volts as this is sometimes not practical (especially when car battery operated). Does the RF transistor also go into saturation this way even when the circuit design is for FM applications?
In some data sheets for Class C power amplifiers Vce is 13.5 Volts for instance, should the Vcc then be 27 Volts or is Vcc the same voltage as Vce in this case?
So should Vce always be half Vcc. Is this a rule for RF transistors too?