Block Structure Preserving Model Order Reduction for A-EFIE Integral Equation Method

TL;DR

This paper introduces a block structure preserving model order reduction technique for the Augmented Electric Field Integral Equation, resulting in more compact models with improved accuracy for electromagnetic simulations.

Contribution

It presents a novel reduction method that maintains block structure in the A-EFIE, enhancing model efficiency and precision over existing approaches.

Findings

Smaller reduced-order models achieved

Higher accuracy demonstrated in numerical tests

Preserves block structure for better physical representation

Abstract

A Block Structure Preserving Model Order Reduction approach is proposed for Integral Equations methods based on the Augmented Electric Field Integral Equation. This approach allows for representing the unknown fields with dedicated subspaces. Numerical results show that this leads to smaller reduced-order models and higher accuracy.