NDLI: RKADE-ADI FDTD applied to analysis of terahertz wave characteristics of plasma

Content Provider	IET Digital Library
Author	Wanjun, Song Hou, Zhang
Abstract	Terahertz (THz) radar has a good potentiality for the countermeasure of plasma stealth due to its high imaging resolution and strong penetration ability. It is of great importance to investigate the THz wave characteristics of plasma for applying THz radar to counter plasma stealth. The Runge–Kutta ADE alternating direction implicit finite difference time domain (RKADE-ADI FDTD) for plasma is proposed through combining the RKADE technique with ADI FDTD, which is aimed at acquiring more accurate THz wave characteristics of plasma. The dispersion error and dissipation error of the RKADE technique are analysed and compared with those of ADE scheme. Through comparing the reflection and transmission coefficients of a plasma sheet calculated by the RKADE-ADI FDTD with those obtained by ADE-ADI FDTD, error-optimised ADE-ADI FDTD, and analytical method, the validity of the proposed method is confirmed. The propagation and reflection characteristics of non-magnetised plasma sheet at THz band are analysed by the proposed method. The reasons for the phenomena of THz wave interaction with plasma are interpreted theoretically.
Starting Page	1071
Ending Page	1077
Page Count	7
ISSN	17518725
Volume Number	11
e-ISSN	17518733
Issue Number	Issue 7, Jun (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/11/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0889
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2017-02-14
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Differential Equation (numerical Analysis) Dispersion Error Dissipation Error Electromagnetic Wave Propagation Electromagnetic Wave Reflection Finite Difference Time-Domain Analysis High Imaging Resolution Nonmagnetised Plasma Sheet Numerical Method Plasma Application Plasma Stealth Countermeasure Propagation Characteristic Radar Equipment Radar Theory Reflection Characteristic RKADE-ADI FDTD Runge-Kutta Alternating Direction Implicit Finite Difference Time Domain Runge-Kutta Method Strong Penetration Ability Submillimetre Wave Radar System And Application Terahertz Radar Terahertz Wave Characteristic THz Wave Interaction
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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