X -Parameter measurement of pulse-compression nonlinear transmission lines

X -parameters provide a powerful and eminently practical solution for interoperable measurement,modeling,and simulation of nonlinear microwave and rf components. using x -parameters to do large-signal measurements has been brought into the spotlight. this paper introduces a new x -parameter application: measuring large-signal behaviour of pulse-compression nonlinear transmission lines (nltls). a specially configured nonlinear vector network analyzer (nvna) was used to measure the x -parameters in the frequency-domain,and then the measured data was transformed into a nonlinear time-domain waveform. the results show both rise-time and fall-time reduction (double-edge compression) as expected and indicate that this newly developed x -parameter method implemented with an nvna could correctly predict nltls' pulse-compression performance. © 2010 ming li et al.