Title :
On the application of model-order reduction in the fast and reliable optimization of microwave filters and diplexers
Author :
Krohne, Klaus ; Vahldieck, Rüdiger
Author_Institution :
Lab. for Electromagn. Fields & Microwave Electron., Swiss Fed. Inst. of Technol. Zurich, Switzerland
Abstract :
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.
Keywords :
S-matrix theory; circuit optimisation; circuit reliability; integration; microwave filters; modal analysis; multiplexing equipment; poles and zeros; reduced order systems; state-space methods; diplexers; direct optimization; finite-integration discretization; microwave devices; microwave filters; model-order reduction; poles and zeros; reliability; reliable optimization; scattering matrix; state-space model; Computational efficiency; Computational modeling; Frequency response; Geometry; Microwave devices; Microwave filters; Poles and zeros; Prototypes; Resonance; Scattering; Filter optimization; MOR; model-order reduction;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.834575
