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On the application of model-order reduction in the fast and reliable optimization of microwave filters and diplexers

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2 Author(s)
Krohne, K. ; Lab. for Electromagn. Fields & Microwave Electron., Swiss Fed. Inst. of Technol. Zurich, Switzerland ; Vahldieck, R.

This paper discusses the application of model-order reduction in the optimization of microwave devices. It focuses on the direct optimization of the scattering matrix poles and zeros, yielding an advanced reliability and universality at a computational cost that is comparable to a surrogate model optimization. The scattering matrix poles and zeros are computed from a state-space model that is obtained from a finite-integration discretization and then optimized to match a set of target poles and zeros.

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:52 ,  Issue: 9 )