Large-signal behavioral modeling of nonlinear amplifiers based on load-pull AM-AM and AM-PM measurements

Liu J., Dunleavy L. P., ARSLAN H.

IEEE Transactions on Microwave Theory and Techniques, vol.54, no.8, pp.3191-3195, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 54 Issue: 8
  • Publication Date: 2006
  • Doi Number: 10.1109/tmtt.2006.879137
  • Journal Name: IEEE Transactions on Microwave Theory and Techniques
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3191-3195
  • Keywords: large signal, microwave measurements, modeling, network analysis, nonlinear systems, scattering parameters
  • Istanbul Medipol University Affiliated: Yes

Abstract

This paper presents an improved behavioral modeling technique that generates large-signal models for nonlinear amplifiers or devices based on load-pull AM-AM and AM-PM measurement datasets. The generated behavioral model characterizes the incident and scattering waveforms at two ports in the frequency domain based on the large-signal scattering function theory. The advantage of this technique is that it is derived entirely from load-pull measurements and provides an analytic method to utilize the load-pull measurements in practical designs. Examples are given to demonstrate the ability of the behavioral models to predict the load-related nonlinearities of the device-under-test. © 2006 IEEE.