Averkin AS, Shishkin AG, Chichkov VI, Voronov BM, Goltsman GN, Karpov A, et al. Tunable frequency-selective surface based on superconducting split-ring resonators. In: 8th Metamaterials.; 2014.
Abstract: 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.
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Karpov A, Miller D, Stern JA, Bumble B, LeDuc HG, Zmuidzinas J. Low noise NbTiN 1.25 THz SIS mixer for Herschel Space Observatory. In: Proc. 16th Int. Symp. Space Terahertz Technol. Göteborg, Sweden; 2005. 450.
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Karpov A, Miller D, Rice F, Zmuidzinas J, Stern JA, Bumble B, et al. Low noise 1.2 THz SIS receiver. In: Jet Propulsion Laboratory CIit.u.t.e of T, editor. Proc. 12th Int. Symp. Space Terahertz Technol. San Diego, CA, USA; 2001. p. 21–2.
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