标题： 基于联合场积分方程的特征模理论 显示英文标题

标题： Combined Field Integral Equation Based Theory of Characteristic Mode

摘要： 基于传统电场积分方程的理论在计算闭合理想导电物体的特征模时，容易受到虚假内部谐振问题的影响。 在本文中，我们提出了一种结合场积分方程的理论，以消除特征模分析中的内部谐振问题。 电场和磁场积分算子被证明共享一组非平凡的特征对（值和模态），从而导致一个不受内部谐振干扰的广义特征值问题。 数值结果用于验证所提出的公式。 这项工作可能为涉及电大闭合表面的特征模分析提供高效的解决方案。 显示英文摘要

摘要： Conventional electric field integral equation based theory is susceptible to the spurious internal resonance problem when the characteristic modes of closed perfectly conducting objects are computed iteratively. In this paper, we present a combined field integral equation based theory to remove the difficulty of internal resonances in characteristic mode analysis. The electric and magnetic field integral operators are shown to share a common set of non-trivial characteristic pairs (values and modes), leading to a generalized eigenvalue problem which is immune to the internal resonance corruption. Numerical results are presented to validate the proposed formulation. This work may offer efficient solutions to characteristic mode analysis which involves electrically large closed surfaces.