Behavioral modeling of nonlinear transfer systems with load-dependent <i>X</i>-parameters
In this contribution, different approaches based on the <i>X</i>-parameters<sup>TM</sup> to model the behavior of mismatched nonlinear transfer systems are examined. The <i>X</i>-parameters based on the PHD<sup>1</sup>-principle introduced by Verspec...
| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Copernicus Publications
2017-09-01
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| Series: | Advances in Radio Science |
| Online Access: | https://www.adv-radio-sci.net/15/37/2017/ars-15-37-2017.pdf |
| Summary: | In this contribution, different approaches based on the <i>X</i>-parameters<sup>TM</sup> to
model the behavior of mismatched nonlinear transfer systems are examined. The
<i>X</i>-parameters based on the PHD<sup>1</sup>-principle introduced by Verspecht and Root (2006) as an
extension of the well-known <i>S</i>-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 <i>X</i>-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 <i>X</i>-parameter set instead. In this work,
these different approaches are compared and brought into question.
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<sup>1</sup> polyharmonic distortion;
Verspecht and Root (2006). |
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| ISSN: | 1684-9965 1684-9973 |