Injection-locked frequency divider and multiplier measurement system

In the past, the frequency locking range and injection-locked power sensitivity for injection-locked frequency divider and injection-locked frequency multiplier circuits might be measured and obtained by sight observation and writing down the measured results. Moreover, it might take a lot of time to measure and confirm frequency locking range and injection-locked power sensitivity by sight observation and writing down method. Therefore, in order to avoid these issues from sight observation and miswriting, this paper proposes an on-PCB and on-wafer injection-locked frequency divider and multiplier measurement system and presents how to calibrate, search and confirm frequency locking range and injection-locked power sensitivity by calibration and measurement software programmed by standard commands for programmable instruments (SCPI) with Keysight Visual Engineering Environment (VEE) software.