PT Unknown
AU Averkin, AS
   Shishkin, AG
   Chichkov, VI
   Voronov, BM
   Goltsman, GN
   Karpov, A
   Ustinov, AV
TI Tunable frequency-selective surface based on superconducting split-ring resonators
SE 8th Metamaterials
PY 2014
DE superconducting split-ring resonators
AB We  study  a  possibility  to  use  the  2D  superconducting  metamaterial as  a  tunable  frequency-selective  surface  (FSS). The proposed  FSS  is  made of  sub-wavelength  size  (l/14) metamaterial  unit cells, where a split-ring resonator is embedded in a small iris aperture in a metal plane. The split-ring resonator is made of NbN film, and its resonance frequency is tuned by the temperature of the sample, changing the kinetic  inductance  of  NbN  film. The Ansoft  HFSS  simulation  predicts  the  FSS  tuning  range  of about 10-20 %. The developed superconducting FSS may be used as a tunable band-pass filter or modulator.
ER