Simulation of Electromagnetic Wave Propagation in Magnetic Randomly Inhomogeneous Magnetic Media

被引：1

作者：

Makarov, Pavel ^{[1
,2
]}

Ustyugov, Vladimir ^{[1
]}

Kotov, Leonid ^{[1
]}

Nekipelov, Sergey ^{[2
]}

Sivkov, Viktor ^{[2
]}

机构：

[1] Syklyvkar State Univ, Syktyvkar 167000, Russia

[2] Russian Acad Sci, Ural Div, Komi Sci Ctr, Inst Phys,Math, Syktyvkar 167982, Russia

来源：

IEEE MAGNETICS LETTERS | 2022年 / 13卷

基金：

俄罗斯科学基金会;

关键词：

Nonhomogeneous media; Mathematical models; Finite difference methods; Receiving antennas; Time-domain analysis; Numerical models; Magnetoacoustic effects; Electromagnetics; finite-difference time-domain method; magnetic films; numerical methods; FDTD MODEL; SCATTERING; SURFACE; TARGET;

D O I：

10.1109/LMAG.2021.3132857

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents an algorithm for numerical simulation of the propagation of electromagnetic waves in randomly inhomogeneous magnetic media by the finite differences in the time domain (FDTD) method. The algorithm is suitable for analyzing the main timing characteristics, as well as for identifying the features of the propagation of various types of signals in both time-independent and time-dependent, layered, randomly inhomogeneous media. Simulation was carried out of the propagation of the sine pulse, sine signal, and square wave in time-independent magnetic randomly inhomogeneous media with various levels of phase contrast of two types: with a "diffuse" distribution of inhomogeneities and their "close packing." The influence of the concentration of magnetic granules and the type of their distribution on the characteristics of the transmitted and reflected signals is revealed.

引用

页数：5

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