Computation of Characteristic Mode for Regional Structure of Interconnected Metal Bodies

TL;DR

This paper introduces an improved electromagnetic modeling approach for accurately computing characteristic modes of regional structures within interconnected metal bodies, overcoming limitations of existing methods that treat structures as single entities.

Contribution

The paper presents a novel electromagnetic model that enables precise characteristic mode analysis of regional structures in interconnected metal bodies, improving accuracy over traditional methods.

Findings

Numerical results confirm the model's high accuracy.

The method effectively analyzes regional structures within interconnected metals.

An antenna design example demonstrates practical application.

Abstract

Existing methods for calculating substructure characteristic modes require treating interconnected metal structures as a single entity to ensure current continuity between different metal bodies. However, when these structures are treated as separate entities, existing methods exhibit inaccuracies, affecting the assessment of structural performance. To address this challenge, we propose an enhanced electromagnetic model that enables accurate characteristic mode analysis for regional structures within interconnected metal bodies. Numerical results validate the accuracy of the proposed method, and an antenna design example demonstrates its practical utility.