期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 70, 期 5, 页码 3560-3574出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2021.3138265
关键词
Method of moments; Integral equations; Scattering; Electric fields; Mathematical models; Impedance; Memory management; Antennas; eigenvalue problems; method of moments (MoM); numerical analysis; scattering; T-matrix method
资金
- Czech Science Foundation [19-06049S]
- Grant Agency of the Czech Technical University in Prague [SGS19/168/OHK3/3T/13]
This article develops hybrid computational schemes that combine the advantages of the method of moments formulation of a field integral equation and T-matrix method. The performance of the method is tested on a spherical multilayer model of the human head, demonstrating its superiority compared to conventional approaches.
Hybrid computational schemes combining the advantages of a method of moments formulation of a field integral equation and T-matrix method are developed in this article. The hybrid methods are particularly efficient when describing the interaction of electrically small complex objects and electrically large objects of canonical shapes such as spherical multilayered bodies where the T-matrix method is reduced to the Mie series making the method an interesting alternative in the design of implantable antennas or exposure evaluations. Method performance is tested on a spherical multilayer model of the human head. Along with the hybrid method, an evaluation of the transition matrix of an arbitrarily shaped object is presented and the characteristic mode decomposition is performed, exhibiting fourfold numerical precision compared to conventional approaches.
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