Work

Synthesis Method for Obtaining Characteristic Modes of Multistructure Systems via Independent Structure T-Matrix

Year: 2025

Type: article

Abstract: This paper presents a novel and efficient method for characteristic mode decomposition in multi-structure systems. By leveraging the translation and rotation matrices of vector spherical wavefunctions, our approach enables the synthesis of a composite system’s characteristic modes using independently computed simulations of its constituent structures. The computationally intensive translation process is simplified by decomposing it into three streamlined sub-tasks: rotation, z-axis translation, and inverse rotation, collectively achieving significant improvements in computational efficiency. Furthermore, this method facilitates the exploration of structural orientation effects without incurring additional computational overhead. A series of illustrative numerical examples is provided to validate the accuracy of the proposed method and underscore its substantial advantages in both computational efficiency and practical applicability.

Source: IEEE Transactions on Antennas and Propagation

DOI: 10.1109/tap.2025.3562101

Authors: Chenbo Shi, Xin Gu, Shichen Liang, Jin Pan, Le Zuo

Institutions: University of Electronic Science and Technology of China, China Electronics Technology Group Corporation, The 28th Research Institute of China Electronics Technology Group Corporation

Language: English

Topic: Electromagnetic Scattering and Analysis

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Chinese Aeronautical Establishment

Award: G6455782519