Propagation of Electromagnetic Waves in a Sinusoidally Modulated Dielectric Substrate

Author

Matekovits, L. ; Colome, G.C.V. ; Orefice, M.

Author_Institution

Dept. of Electron., Politecnico di Torino

Volume

6

fYear

2007

fDate

6/29/1905 12:00:00 AM

Firstpage

207

Lastpage

210

Abstract

A single-layer microstrip structure with variable line width is considered in order to create, by periodic repetition, an electromagnetic bandgap structure. The width of the line is varied in such a way as to guarantee a sinusoidally modulated value of the effective dielectric constant along the longitudinal direction. By repeating periodically the structure in the orthogonal direction, a high-impedance surface is obtained. Continuous and discrete line configurations are considered, and the performances of the two-dimensional structure with respect to the uniform line case are compared

Keywords

microstrip lines; photonic band gap; waveguide theory; dielectric constant; electromagnetic bandgap structure; electromagnetic waves propagation; single-layer microstrip structure; sinusoidally modulated dielectric substrate; two-dimensional structure; variable line width; Dielectric constant; Dielectric substrates; Electromagnetic propagation; Electromagnetic scattering; Magnetic materials; Metamaterials; Microstrip; Optical materials; Optical surface waves; Periodic structures; Electromagnetic bandgap (EBG); microstrip structures; periodic structures;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2007.893098

Filename

4167876