Analytic fields of a focused beam with higher-order compensations for FDTD TF/SF formulation

Author

Singh, Gurpreet ; Tan, Eng Leong ; Chen, Zhi Ning

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2011

fDate

3-8 July 2011

Firstpage

2278

Lastpage

2281

Abstract

This paper presents time-domain analytic fields of a focused beam with higher-order compensations for the finite-difference time-domain (FDTD) total-field/scattered-field (TF/SF) formulation. The higher-order compensations account for the FDTD numerical dispersion and the frequency-dependent field polarizations. With these compensations, the focused beam can be excited with minimal field leakage errors in the SF region. Numerical experiments are presented to validate the proposed fields and its compensations.

Keywords

electromagnetic wave polarisation; electromagnetic wave scattering; finite difference time-domain analysis; FDTD numerical dispersion; finite-difference time-domain formulation; focused beam; frequency-dependent field polarizations; higher-order compensations; minimal field leakage errors; total-field-scattered-field formulation; Antennas; Approximation methods; Dispersion; Finite difference methods; Numerical models; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5996972

Filename

5996972