Optimum scaling factors for one-dimensional finite-difference time-domain scheme in Maxwell-Boltzmann system

Il Young Oh, Deok Kyu Kim, Jong Gwan Yook

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper proposes a new one-dimensional finite-difference time-domain (1D-FDTD) method to achieve accurate electromagnetic (EM) wave characteristics in plasma region for wideband signals. This paper utilizes Maxwell-Boltzmann system, which can analyze EM wave properties without effective permittivity model, such as Debye, Drude, or Lorentz model. It is the advantage of the proposed method that does not increase the complexity of the conventional FDTD algorithm while it provides accurate results. The proposed method employs two scaling factors that control electron density and collision frequency of plasma. And they are optimized to achieve minimum error in the frequency band of interest, and the optimized scaling factors are applied to the conventional FDTD method. The validity and effectiveness of the proposed method is verified by comparing electric field intensity in infinite plasma region with that of the analytic solution and the conventional FDTD method.

Original languageEnglish
Pages (from-to)599-606
Number of pages8
JournalInternational Journal of Numerical Modelling: Electronic Networks, Devices and Fields
Volume25
Issue number5-6
DOIs
Publication statusPublished - 2012 Sep 1

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Scaling Factor
Finite-difference Time-domain (FDTD)
Ludwig Boltzmann
FDTD Method
Plasma
Electromagnetic Wave
Plasmas
Electromagnetic waves
Finite-difference Time-domain Method
Permittivity
Analytic Solution
Frequency bands
Carrier concentration
Electric Field
Collision
Electric fields
Electron
Model

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

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abstract = "This paper proposes a new one-dimensional finite-difference time-domain (1D-FDTD) method to achieve accurate electromagnetic (EM) wave characteristics in plasma region for wideband signals. This paper utilizes Maxwell-Boltzmann system, which can analyze EM wave properties without effective permittivity model, such as Debye, Drude, or Lorentz model. It is the advantage of the proposed method that does not increase the complexity of the conventional FDTD algorithm while it provides accurate results. The proposed method employs two scaling factors that control electron density and collision frequency of plasma. And they are optimized to achieve minimum error in the frequency band of interest, and the optimized scaling factors are applied to the conventional FDTD method. The validity and effectiveness of the proposed method is verified by comparing electric field intensity in infinite plasma region with that of the analytic solution and the conventional FDTD method.",
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N2 - This paper proposes a new one-dimensional finite-difference time-domain (1D-FDTD) method to achieve accurate electromagnetic (EM) wave characteristics in plasma region for wideband signals. This paper utilizes Maxwell-Boltzmann system, which can analyze EM wave properties without effective permittivity model, such as Debye, Drude, or Lorentz model. It is the advantage of the proposed method that does not increase the complexity of the conventional FDTD algorithm while it provides accurate results. The proposed method employs two scaling factors that control electron density and collision frequency of plasma. And they are optimized to achieve minimum error in the frequency band of interest, and the optimized scaling factors are applied to the conventional FDTD method. The validity and effectiveness of the proposed method is verified by comparing electric field intensity in infinite plasma region with that of the analytic solution and the conventional FDTD method.

AB - This paper proposes a new one-dimensional finite-difference time-domain (1D-FDTD) method to achieve accurate electromagnetic (EM) wave characteristics in plasma region for wideband signals. This paper utilizes Maxwell-Boltzmann system, which can analyze EM wave properties without effective permittivity model, such as Debye, Drude, or Lorentz model. It is the advantage of the proposed method that does not increase the complexity of the conventional FDTD algorithm while it provides accurate results. The proposed method employs two scaling factors that control electron density and collision frequency of plasma. And they are optimized to achieve minimum error in the frequency band of interest, and the optimized scaling factors are applied to the conventional FDTD method. The validity and effectiveness of the proposed method is verified by comparing electric field intensity in infinite plasma region with that of the analytic solution and the conventional FDTD method.

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