Response of analog-to-digital converter of three inverters to injection of P-band microwaves

Microwave injection experiments were conducted on the analog-to-digital converter of three inverters to study its response to P-band microwaves of different parameters. The effectiveness and reliability of the experiments were achieved by using the eye figure to test the output performance and the temperature measurement circuit to check the operation stability, and analyzing the influence of different chips and printed circuit boards with statistical test. For injected pulse width above 70 ns, the threshold of the injected microwave power for noise margin of 50% of the signal amplitude is 4 to 6 dBm lower than that for sampling interval change of 10%; the power threshold for 30% sampling interval change is 2 to 3 dB higher than that for 10% change; the maximal nonlinear interference is 40