Matching for transistors, diodes, etc.. Match to what R should i do?

[Terminator3]

I did some excersises on impedance matching. Now i realized how to do series line match of 50 Ohm line to some 123 Ohm load, etc.. But when it comes to transistors and diodes i totally lost:

for example, i download datasheet on few transistors and schottky diodes, but there are no any data on complex impedance, etc..
So, if i need to do open-stub matching of transistor (two stubs, calculate stub length and distance), i do not know where to start. Where i can get that numbers?

Thanks

 

[Ow@i$]

often we select the impedance at the center point in frequency - impedance graph of that device in its datasheet, then match this point to the required impedance, depending upon the frequency band ... number and values of matching network change!!!!