Identifying magnetic response of split-ring resonators at microwave frequencies |
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| Authors: | K Aydin E Ozbay |
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| Institution: | (1) Nanotechnology Research Centre, Bilkent University, Bilkent, 06-800 Ankara, Turkey;(2) Department of Physics, Bilkent University, Bilkent, 06-800 Ankara, Turkey;(3) Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, 06-800 Ankara, Turkey |
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| Abstract: | In this study we provide experimental methods to identify the magnetic resonance of split ring resonantors (SRR) at the microwave
frequency regime. Transmission measurements were performed on both single SRR unit cell and periodic arrays of SRRs. The magnetic
response of the SRR structure was demonstrated by comparing the transmission spectra of SRRs with closed ring resonators (CRR).
Effects of the changes in the effective dielectric constant of the SRR medium on the band-gaps of SRR are investigated experimentally.
SRRs not only exhibit a magnetic resonance band gap but also a band gap due to the electric resonance. Finally, we present
the effect of electric coupling to the magnetic resonance of bianisotropic SRRs by utilizing SRRs with different orientations,
and incident electromagnetic wave polarizations. |
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| Keywords: | split ring resonator negative permeability left-handed materials metamaterials |
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