Dual capacitive-inductive nature of graphene metasurface: Transmission characteristics at low-terahertz frequencies

Author

Padooru, Y.R. ; Yakovlev, A.B. ; Kaipa, Chandra S. R. ; Hansony, George W. ; Medina, Francisco ; Mesa, Francisco

Author_Institution

Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS, USA

fYear

2013

fDate

7-13 July 2013

Firstpage

1598

Lastpage

1599

Abstract

We report on the dual nature (capacitive and inductive) of the surface impedance of periodic graphene patches at low-terahertz frequencies. The transmission spectra of a graphene-dielectric stack shows that patterned graphene exhibits both the low-frequency (capacitive) passband of metal patch arrays and the higher-frequency (inductive) passband of metal aperture arrays in a single tunable configuration. The analysis is carried out using a transfer matrix approach with two-sided impedance boundary conditions, and the results are verified using full-wave numerical simulations.

Keywords

capacitors; electromagnetic wave transmission; frequency selective surfaces; graphene; inductors; terahertz metamaterials; dual capacitive-inductive nature; graphene metasurface capacitive-inductive nature; graphene-dielectric stack; higher-frequency passband; low terahertz frequency; low-frequency passband; metal aperture arrays; metal patch arrays; patterned graphene; periodic graphene patch; single tunable configuration; surface impedance; transmission characteristics; Dielectrics; Graphene; Impedance; Metals; Optical surface waves; Slabs; Surface impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6711458

Filename

6711458