letlive
Newbie level 5
I am trying to design a comb generator circuit of frequency range 30 MHz to 1GHz in NI multisim student version 13. I have designed a circuit with voltage regulator for which 5V is fed to the 74ls04d hex invertor. I am using 11 MHz crystal oscillator. The output of hex invertor gives square wave output which i gave to high pass filter to get spikes then gave it to the clipper circuit to clip off the positive spikes. when i observe the output in spectrum analyzer the impuse response is not repeating on a step size of 11MHz.What is the reason behind it and how can i sove it? Also how can i replace the diode of clipper circuit with step recovery diode?