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Frequency Tunable Metamaterial Designs Using Near Field Coupled SRR Structures in the Terahertz Region
Date
2011-01-01
Author
Ekmeki, Evren
Strikwerda, Andrew C.
Fan, Kebin
Keiser, George
Zhang, Xin
Sayan, Gönül
Averitt, Richard D.
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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We present frequency tunable metamaterials at terahertz frequencies using broadside-coupled split ring resonators (BC-SRRs). Frequency tuning, arising from changes in near field coupling, is obtained by in-plane displacement between the SRR layers. For electrical excitation, the resonance frequency continuously redshifts as a function of displacement. A maximum frequency shift occurs for displacement of half a unit cell resulting in a shift of 663 GHz (51% of f0). We discuss the difference in the BC-SRR response for electrical excitation in comparison to magnetic excitation in terms of hybridization arising from inductive and capacitive coupling.
URI
https://hdl.handle.net/11511/53070
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar