On high resolution, pulse-profiled mm-wave intermodulation measurements

Distortion measurements in mm-wave systems are becoming increasingly important including in situations with pulsed or related signals. Of particular interest are edge-related phenomena including nonlinearities induced by drive overshoot and ringing and those whose behaviors are convolved with longer time constant mechanisms (e.g., thermal). Complications, calibration methods, potential uncertainties, and resolution-offset tradeoffs associated with this measurement class will be discussed in the context of W-band and D-band amplifier measurements emphasizing edge-related IMD behavior.