Step on it bringing fullwave finite-element microwave filter design up to speed

L Balewski, G Fotyga, M Mrozowski… - IEEE microwave …, 2020 - ieeexplore.ieee.org
There are many steps in the design of a microwave filter: mathematically describing the filter
characteristics, representing the circuit as a network of lumped elements or as a coupling …

An MOR algorithm based on the immittance zero and pole eigenvectors for fast FEM simulations of two-port microwave structures

G Fotyga, D Szypulski, A Lamecki… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
The aim of this article is to present a novel model-order reduction (MOR) algorithm for fast
finite-element frequency-domain simulations of microwave two-port structures. The …

Spurious modes in model order reduction in variational problems in electromagnetics

V De La Rubia, D Young, G Fotyga… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this work, we address an everlasting issue in model order reduction (MOR) in
electromagnetics that has remained unnoticed until now. Contrary to what has been …

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

G Fotyga - IEEE Access, 2021 - ieeexplore.ieee.org
The aim of this paper is to present a novel model-order reduction (MOR) technique for the
efficient frequency-domain finite-element method (FEM) simulation of microwave …