A Model-Order Reduction Approach for Electromagnetic Problems With Nonaffine Frequency Dependence - Publication - MOST Wiedzy

Search

A Model-Order Reduction Approach for Electromagnetic Problems With Nonaffine Frequency Dependence

Abstract

The aim of this paper is to present a novel model-order reduction (MOR) technique for the efcient frequency-domain nite-element method (FEM) simulation of microwave components. It is based on the standard reduced-basis method, but the subsequent expansion frequency points are selected following the so-called sparsied greedy strategy. This feature makes it especially useful to perform a fast-frequency sweep of problems that lead to systems of equations exhibiting a nonafne frequency dependence. This property appears, for example, when the excitation of the problem is characterized by a frequency-dependent waveguide mode pattern, or when the computational domain includes materials with frequency-dependent permittivity or permeability tensors. Moreover, the new MOR scheme can be also used to accelerate the frequency sweep of problems with many excitations, for which the standard reduction algorithms tend to be time-consuming. Its effectiveness and accuracy is veried through analysis of three microwave structures: planar microstrip branch-line coupler, three-port waveguide junction with ferrite post, and an eighth-order dual-mode waveguide lter.

Citations

  • 0

    CrossRef

  • 0

    Web of Science

  • 0

    Scopus

Cite as

Full text

download paper
downloaded 8 times
Publication version
Accepted or Published Version
License
Creative Commons: CC-BY open in new tab

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
IEEE Access no. 9, pages 47481 - 47490,
ISSN: 2169-3536
Language:
English
Publication year:
2021
Bibliographic description:
Fotyga G.: A Model-Order Reduction Approach for Electromagnetic Problems With Nonaffine Frequency Dependence// IEEE Access -Vol. 9, (2021), s.47481-47490
DOI:
Digital Object Identifier (open in new tab) 10.1109/access.2021.3068937
Sources of funding:
Verified by:
Gdańsk University of Technology

seen 35 times

Recommended for you

Meta Tags