2.5-D stacked composite right/left-handed metamaterial structures using dielectric resonators and parallel mesh plates

Author

Tetsuya Ueda ; Michishita, Naobumi ; Lai, Anthony ; Akiyama, Masahiro ; Itoh, Tatsuo

Author_Institution

Kyoto Institute of Technology, 606-8585, Japan

fYear

2008

fDate

15-20 June 2008

Firstpage

335

Lastpage

338

Abstract

In this paper, stacked structures composed of mesh plates and dielectric layers including 2-D array of dielectric discs are proposed as a new type of volumetric composite right/left-handed metamaterial structure for TE-polarized waves. No band gap condition between right and left-handed bands is designed in order to broaden the left-handed bandwidth by adjusting the aperture size of the mesh. Based on this layered metamaterial structure, a flat focusing lens which operates in free space is designed and fabricated. For a source launched from a small loop antenna, beam focusing through the fabricated finite-cell-layered lens is experimentally confirmed by measuring the field profiles.

Keywords

composite materials; dielectric resonator antennas; electromagnetic wave polarisation; lens antennas; loop antennas; metamaterials; TE-polarized waves; beam focusing; dielectric resonators; finite-cell-layered lens fabrication; left-handed metamaterial structures; loop antenna; parallel mesh plates; stacked composite right metamaterial structures; Antennas and propagation; Dielectric losses; Dielectric resonator antennas; Focusing; Geometry; Lenses; Metamaterials; Optical design; Structural discs; Tellurium; Dielectric resonators; lenses; parallel plate waveguides;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4633171

Filename

4633171