f_t
Member level 4
Friends,
I have designed a class-E power amplifier. To filter usable band (2.2GHz-2.3GHz) I have used 4 open stub to be short circuit at 4 harmonics. Its output impedance is 52+j166. Because my filter and PA work great, I do not want to change my filter or my circuit. But, the point is that its imaginary of output impedance is high and the modulation on this power amplifier is DQPSK. I want to know whether its imaginary part will create some reflected waves and will distort my circuit or not?
If it affects data on modulation, how can I add a matching network in a way that It does not affect the work of my filter and load power?
I have designed a class-E power amplifier. To filter usable band (2.2GHz-2.3GHz) I have used 4 open stub to be short circuit at 4 harmonics. Its output impedance is 52+j166. Because my filter and PA work great, I do not want to change my filter or my circuit. But, the point is that its imaginary of output impedance is high and the modulation on this power amplifier is DQPSK. I want to know whether its imaginary part will create some reflected waves and will distort my circuit or not?
If it affects data on modulation, how can I add a matching network in a way that It does not affect the work of my filter and load power?