Efficient Finite-Difference Time-Domain Modeling of Time-Varying Dusty Plasmaopen access
- Authors
- Kim, Yong-Jin; Cho, Jeahoon; Jung, Kyung-Young
- Issue Date
- Jul-2022
- Publisher
- Korean Institute of Electromagnetic Engineering and Science
- Keywords
- Dispersive Media; Electromagnetic Propagation in Plasma Media; Finite-Difference Time-Domain (FDTD) Method
- Citation
- Journal of Electromagnetic Engineering and Science, v.22, no.4, pp.502 - 508
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of Electromagnetic Engineering and Science
- Volume
- 22
- Number
- 4
- Start Page
- 502
- End Page
- 508
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/186150
- DOI
- 10.26866/jees.2022.4.r.115
- ISSN
- 2671-7255
- Abstract
- The finite-difference time-domain (FDTD) method has been widely used for the electromagnetic analysis of dusty plasma sheath in reentering hypersonic vehicles. The time-varying characteristics of dusty plasma should be considered to accurately analyze THz wave propagation in dusty plasma. In this work, we propose an efficient FDTD modeling of time-varying dusty plasma based on the combination of the bilinear transform and the state-space approach. The proposed FDTD formulation for time-varying dusty plasma can lead to a significant improvement in computational efficiency against the conventional shift operator FDTD counterpart while maintaining numerical accuracy. Numerical examples are performed to validate the proposed FDTD modeling of time-varying dusty plasma.
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