An Extended Newmark-FDTD Method for Complex Dispersive Media
Joint Authors
Source
International Journal of Antennas and Propagation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Based on polarizability in the form of a complex quadratic rational function, a novel finite-difference time-domain (FDTD) approach combined with the Newmark algorithm is presented for dealing with a complex dispersive medium.
In this paper, the time-stepping equation of the polarization vector is derived by applying simultaneously the Newmark algorithm to the two sides of a second-order time-domain differential equation obtained from the relation between the polarization vector and electric field intensity in the frequency domain by the inverse Fourier transform.
Then, its accuracy and stability are discussed from the two aspects of theoretical analysis and numerical computation.
It is observed that this method possesses the advantages of high accuracy, high stability, and a wide application scope and can thus be applied to the treatment of many complex dispersion models, including the complex conjugate pole residue model, critical point model, modified Lorentz model, and complex quadratic rational function.
American Psychological Association (APA)
Zhang, Yu-Qiang& Pengju, Yang. 2018. An Extended Newmark-FDTD Method for Complex Dispersive Media. International Journal of Antennas and Propagation،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1168180
Modern Language Association (MLA)
Zhang, Yu-Qiang& Pengju, Yang. An Extended Newmark-FDTD Method for Complex Dispersive Media. International Journal of Antennas and Propagation No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1168180
American Medical Association (AMA)
Zhang, Yu-Qiang& Pengju, Yang. An Extended Newmark-FDTD Method for Complex Dispersive Media. International Journal of Antennas and Propagation. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1168180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168180