Articles | Volume 15
Adv. Radio Sci., 15, 37–41, 2017
https://doi.org/10.5194/ars-15-37-2017
Adv. Radio Sci., 15, 37–41, 2017
https://doi.org/10.5194/ars-15-37-2017

  21 Sep 2017

21 Sep 2017

Behavioral modeling of nonlinear transfer systems with load-dependent X-parameters

Seyed Mohammadamin Moosavi, Christian Widemann, and Wolfgang Mathis Seyed Mohammadamin Moosavi et al.
  • Leibniz Universität Hannover, Institut für Theoretische Elektrotechnik Leibniz Universität Hannover, Hanover, Germany

Abstract. In this contribution, different approaches based on the X-parametersTM to model the behavior of mismatched nonlinear transfer systems are examined. The X-parameters based on the PHD1-principle introduced by Verspecht and Root (2006) as an extension of the well-known S-parameters describe nonlinear microwave 2-port-networks under large signal conditions. Using load-pull measurement techniques they can be used for arbitrary load situations. Beside this load-pull approach, in the work of Cai et al. (2015), it is stated that it is sufficient to use one optimized X-parameter set for each value of the load reflection coefficient without introducing a large error. In another contribution of Cai and Yu (2015), this approach is extended to cover the whole smith chart with one optimized X-parameter set instead. In this work, these different approaches are compared and brought into question.



1 polyharmonic distortion; Verspecht and Root (2006).