Unconditionally Stable Leapfrog Algorithm of the Split-Field FDTD for Periodic Structures

Author

Zheng Sun ; Li-Hua Shi ; Xiang Zhang ; Bin Chen

Author_Institution

Nat. Key Lab. on Electromagn. Environ. Effects & Electro-Opt. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

Volume

24

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

78

Lastpage

80

Abstract

An unconditionally stable one-step leapfrog algorithm is presented to analyze the oblique incident plane wave on periodic structures. The algorithm is originated from the improved split-field method, but no sub-step computations are required. It is more computationally efficient while preserving the properties of the improved split-field method. The complex frequency shifted perfectly matched layer (CFS-PML) for the new algorithm is also developed to truncate the computational domain. To verify the accuracy and the efficiency of the proposed method, we compare its results with that of the improve split-field method.

Keywords

computational electromagnetics; finite difference time-domain analysis; periodic structures; complex frequency shifted perfectly matched layer; oblique incident plane wave; periodic structures; split-field FDTD; unconditionally stable leapfrog algorithm; Accuracy; Antennas; Equations; Finite difference methods; Periodic structures; Time-domain analysis; Wireless communication; Leapfrog; periodic structures; split-field FDTD; unconditionally stable;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2013.2291195

Filename

6678813