PSTD-FDTD Analysis for Complex Irregular Fresnel Zone Plates

Author

Ooi, B.L. ; Fan, Y.J. ; Leong, M.S. ; Shan, X.C. ; Lu, Albert ; Hristov, H.D. ; Feick, D.

Author_Institution

Dept. Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

fYear

2007

fDate

11-16 Nov. 2007

Firstpage

1

Lastpage

6

Abstract

In the past, the Kirchhoff s diffraction integral (KDI) method was successfully employed to analyze the diffraction problem in simple Fresnel Zone Plate (FZP) design. However, for complex and irregular structured Fresnel Zone Plates, the Kirchhoff diffraction integral is no longer a good choice. Efficient full-wave analysis is thus needed for a complete 3D transient analysis. Owing to the large computation domain and huge unknowns of the Fresnel Zone Plate problems, which is typically 10lambda to 20lambda, to date, no full-wave analysis has been attempted. In this paper, an efficient PSTD-FDTD method was first developed and applied to the 3D transient analysis of the Fresnel Zone Plate problem. In this paper, both the classic Fresnel Zone Plate and the irregular Fresnel Zone Plate are analyzed with the PSTD-FDTD method. Its accuracy and efficiency are validated by comparing with the Kirchhoff s diffraction integral method.

Keywords

Fresnel diffraction; computational electromagnetics; finite difference time-domain analysis; radio links; spectral analysis; transient analysis; 3D transient analysis; Kirchhoff diffraction integral method; PSTD-FDTD analysis; complex irregular Fresnel zone plates; computation domain; finite-difference time-domain method; full-wave analysis; pseudo-spectral time-domain method; radio relay communications links; Finite difference method; Fresnel zone plate; Full wave analysis; Pseudo-Spectral Method;

fLanguage

English

Publisher

iet

Conference_Titel

Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on

Conference_Location

Edinburgh

Print_ISBN

978-0-86341-842-6

Type

conf

Filename

4458746