Frequency-Dependent FDTD Algorithm Using Newmark’s Method
Joint Authors
Wei, Bing
Cao, Le
Wang, Fei
Yang, Qian
Source
International Journal of Antennas and Propagation
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-13
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
According to the characteristics of the polarizability in frequency domain of three common models of dispersive media, the relation between the polarization vector and electric field intensity is converted into a time domain differential equation of second order with the polarization vector by using the conversion from frequency to time domain.
Newmark β γ difference method is employed to solve this equation.
The electric field intensity to polarizability recursion is derived, and the electric flux to electric field intensity recursion is obtained by constitutive relation.
Then FDTD iterative computation in time domain of electric and magnetic field components in dispersive medium is completed.
By analyzing the solution stability of the above differential equation using central difference method, it is proved that this method has more advantages in the selection of time step.
Theoretical analyses and numerical results demonstrate that this method is a general algorithm and it has advantages of higher accuracy and stability over the algorithms based on central difference method.
American Psychological Association (APA)
Wei, Bing& Cao, Le& Wang, Fei& Yang, Qian. 2014. Frequency-Dependent FDTD Algorithm Using Newmark’s Method. International Journal of Antennas and Propagation،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1036009
Modern Language Association (MLA)
Wei, Bing…[et al.]. Frequency-Dependent FDTD Algorithm Using Newmark’s Method. International Journal of Antennas and Propagation No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-1036009
American Medical Association (AMA)
Wei, Bing& Cao, Le& Wang, Fei& Yang, Qian. Frequency-Dependent FDTD Algorithm Using Newmark’s Method. International Journal of Antennas and Propagation. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-1036009
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036009