Gangbuster frequency selective surface metamaterials in terahertz band

Author

Shelton, D.J. ; Cleary, J.W. ; Ginn, J.C. ; Wadsworth, S.L. ; Peale, Robert E. ; Kotter, D.K. ; Boreman, G.D.

Author_Institution

Univ. of Central Florida, Orlando, FL

Volume

44

Issue

22

fYear

2008

Firstpage

1288

Lastpage

1289

Abstract

Frequency selective surfaces using Ag dipole antenna elements have been simulated, fabricated and tested to demonstrate improved narrowband transmission compared to the current state of the art in the 1-2 THz. Several designs are presented including variations in dipole packing density, and sensitivity to a cladding layer. The sharpest resonant response was measured to have a bandwidth of 90-GHz at a centre frequency of 1.3-THz, for a Q of 14.5, which is the highest thus far reported for a terahertz narrowband filter. In addition, the sensitivity of the resonance of the structures to material properties may be exploited as a way to measure the permittivity and loss tangent of thin films in the terahertz band.

Keywords

dipole antennas; frequency selective surfaces; loss measurement; metamaterials; permittivity measurement; submillimetre wave filters; thin films; bandwidth 90 GHz; cladding layer sensitivity; dipole antenna elements; dipole packing density; frequency 1.3 THz; frequency selective surface; gangbuster metamaterials; narrowband transmission; permittivity measurement; terahertz band; terahertz narrowband filter; thin films loss tangent;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20082119

Filename

4658744