Numerical examination on effective permittivity of periodic structure by the FDTD method

Author

Matsumoto, Kaname ; Yokota, Masao

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Miyazaki, Miyazaki, Japan

fYear

2013

fDate

20-24 May 2013

Firstpage

946

Lastpage

949

Abstract

The effective permittivity of the one-dimensional periodic structure is examined using the reflectance and transmissivity obtained by the FDTD method. By using the reflectance and transmissivity by the FDTD method, the effective permittivity of the dielectric slab, which has the same reflectance and transmissivity with that of periodic structure, is obtained by using the transcendental equation. Also, the effective permittivity is calculated by Rytov approximation, and the range of application and the validity of the effective permittivity are shown by comparing the Rytov approximation with the approximation obtained by the FDTD method.

Keywords

approximation theory; finite difference time-domain analysis; periodic structures; permittivity; FDTD method; Rytov approximation; dielectric slab permittivity; numerical examination; one-dimensional periodic structure; reflectance; transcendental equation; transmissivity; Approximation methods; Dielectrics; Electromagnetics; Finite difference methods; Periodic structures; Permittivity; Slabs;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on

Conference_Location

Hiroshima

Print_ISBN

978-1-4673-4939-0

Type

conf

Filename

6565900