Strong Admissibility Skeletonization Factorization With Multibranch RWG for Analyzing Electromagnetic Scattering from Multiscale Objects
- Resource Type
- Conference
- Authors
- Zhang, Liyang; Fu, Wenchao; Chen, Xinlei; Li, Ziwei; Gu, Changqing
- Source
- 2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Microwave and Millimeter Wave Technology (ICMMT), 2023 International Conference on. :1-2 May, 2023
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Signal Processing and Analysis
Surface impedance
Microwave technology
Microwave integrated circuits
Electromagnetic scattering
Millimeter wave technology
Impedance
Microwave FET integrated circuits
multibranch basis function (MB-RWG)
method of moments (MoM)
strong admissibility skeletonization factorization (SRSF)
- Language
In this paper, strong admissibility skeletonization factorization (SASF) with multibranch Rao–Wilton–Glisson (MBRWG) basis function is proposed to efficiently compute the electromagnetic scattering from multiscale objects. In this method, the non-conformal mesh is applied to discretize the surfaces located at the boundary area of two components with a large difference in size and MBRWG basis functions are applied on these meshes to maintain the continuity of the surface current. The impedance matrix is recursively compressed into a product of a series of block-diagonal matrices by SASF, the inverse of which can be easily solved. Numerical examples are performed to validate the accuracy and efficiency of the proposed method.