Hi, I have designed a RF amp at frequency 5.3GHz. Would like to know what is the root cause for the ripple effect along the band? Is it the unstable of the amplifier? or the not matching? or there is too much reflection?
It seems to me this effect could be due to a long (referred to lambda) poorly matched transmission line. Is your network analyzer calibrated at the end of the connecting cables ? Can't you measure S11 and/or S22 ?
It seems to me this effect could be due to a long (referred to lambda) poorly matched transmission line. Is your network analyzer calibrated at the end of the connecting cables ? Can't you measure S11 and/or S22 ?