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Power amplifier impedance matching

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Mabrok

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Is it possible to match complex impedance to other complex impedance using quarter wave impedance matching technique? And How?
 

FvM

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You can with multiple transmission line stubs. Obviously not all exactly quarter wave length. Smith chart tools like SimSmith will help you to design the matching network.

As a simple approach (not necessarily the best), use one shunt stub at each side to compensate the imaginary impedance and a quarter wave series line to match the remaining real impedances.
 

vivekroy

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You can but will be limited in the number of impedance that you can create.
The impedance transformation ratio Z_trans = Zo^2/Z_load
Zo is typically real. So if you have a capacitive load impedance impedance, it gets transformed to an inductive impedance and vice versa.
 

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