Synthesis Method for Obtaining Characteristic Modes of Multi-Structure Systems via independent Structure T-Matrix
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.
Cite
@article{arxiv.2411.08905,
title = {Synthesis Method for Obtaining Characteristic Modes of Multi-Structure Systems via independent Structure T-Matrix},
author = {Chenbo Shi and Xin Gu and Shichen Liang and Jin Pan and Le Zuo},
journal= {arXiv preprint arXiv:2411.08905},
year = {2025}
}