Propagation of resonance cones in truncated hyperbolic transmission-line grids over ground

Author

Siddiqu, O.F. ; Balmain, K.G. ; Eleftheriades, G.V.

Author_Institution

Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

fYear

2005

fDate

12-17 June 2005

Abstract

Resonance-cone propagation in truncated transmission-line hyperbolic grids over ground, is studied using circuit analysis and verified experimentally in microstrip grids. These structures support the propagation of resonance-cones that propagate within the grids in specific frequency-dependent spatial directions (cone-angles), a property that can be exploited to make spatial filtering and de-multiplexing devices. Analytical and experimental results show that there is no phase variation along a resonance cone. Moreover, a 180° phase variation is observed perpendicular to the cones in lossless grids, which increases in practical grids.

Keywords

electromagnetic wave propagation; equivalent circuits; metamaterials; microstrip lines; periodic structures; transmission lines; frequency-dependent spatial directions; hyperbolic dispersion; metamaterials; microstrip grids; microstrip transmission lines; periodic structures; phase variation; resonance cone propagation; truncated hyperbolic transmission-line grids; Anisotropic magnetoresistance; Circuit analysis; Filtering; Focusing; Frequency; Metamaterials; Microstrip; Periodic structures; Resonance; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2005 IEEE MTT-S International

ISSN

01490-645X

Print_ISBN

0-7803-8845-3

Type

conf

DOI

10.1109/MWSYM.2005.1517059

Filename

1517059