Recently, i am doing projects of class E PA in radio frequency. I got about two concepts which are about harmonics suppression and impedance matching for harmonics.
Things i know is not quite much. I have known that one method for harmonics suppression is through 1/4lamda microstrip. We can make some open microstrips at 1/4lamda wavelength so that this can short the harmonics which we probably only get the fundamental wave at the load.
But what is about impedance matching for harmonics, things i know is that it can improve the efficiency of the power amplifier but by what kind of way.
Is there some relationships between these two concepts? I mean they both can be achieved by microstrips. So i just a little confused.
Anyway, might need your guidance. Thanks!
Things i know is not quite much. I have known that one method for harmonics suppression is through 1/4lamda microstrip. We can make some open microstrips at 1/4lamda wavelength so that this can short the harmonics which we probably only get the fundamental wave at the load.
But what is about impedance matching for harmonics, things i know is that it can improve the efficiency of the power amplifier but by what kind of way.
Is there some relationships between these two concepts? I mean they both can be achieved by microstrips. So i just a little confused.
Anyway, might need your guidance. Thanks!