Triple-band terahertz metamaterial absorber

Author

Xiao Zhang ; Zhirun Hu

Author_Institution

Microwave & Commun. Syst. Res. Group, Univ. of Manchester, Manchester, UK

fYear

2013

fDate

6-10 Oct. 2013

Firstpage

1043

Lastpage

1046

Abstract

We report on the design and characterisation of a triple-band terahertz (THz) metamaterial absorber (MA). We use the equivalent transmission line (TL) circuit model analysis to define the triple-band THz MA dimensions, which makes it easy and straightforward to derive a set of procedures of designing an arbitrary MA from a TL circuit model. Through changing the self-inductance in proposed MA, we can adjust the fundamental resonant frequency independently. From the presented simulation results, three nearly unity absorption peaks are observed at frequencies of 0.22THz, 0.68THz and 1.10THz. We also prove the good performance of proposed MA no matter how much the oblique incident wave angle changes within a large range. This feature of wide accepted angles is promising in many application areas.

Keywords

equivalent circuits; metamaterials; microwave metamaterials; terahertz materials; transmission lines; equivalent transmission line circuit model analysis; frequency 0.22 THz; frequency 0.68 THz; frequency 1.10 THz; fundamental resonant frequency; oblique incident wave angle; self inductance; triple band terahertz metamaterial absorber; unity absorption peaks; Absorption; Analytical models; Capacitors; Integrated circuit modeling; Metamaterials; Reflection; Resonant frequency; metamaterial absorber; triple-band; triple-band terahertz (THz);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6686839