Breaking the Diffraction Limit Manifold Using Specially Designed Metamaterial Split Ring Resonator

Bindu, C.; Simon, Sikha K.; Sebastian, Anju; Aswathi, P. V.; Joseph, Dona; Andrews, Jolly; Joseph, V. P.

doi:10.2528/pierm21091203

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…[19][20][21] Metamaterial-inspired sensors are in great demand in various spheres of science owing to their extreme sensitivity and preciseness. 22 Some of the noticeable applications in this realm are: SRR-based sensors for the measurement of complex permittivity of dielectrics 23 and their temperature dependence, 24 vibration sensors capable of detecting seismic waves, 25 near eld imaging probes, 26 non-destructive thickness measurement of dielectric lms, 27 near-eld perturbation studies, 28 micro-uidic sensors, 29 multichannel thin lm sensors, 30 and biosensors. 31 A wire split ring resonator (WSRR), a special SRR structure, consists of two concentric metallic rings with splits oriented in opposite directions.…”

Section: Introductionmentioning

confidence: 99%

A metamaterial based sensor for moisture and density of cereal flours

P. V.,

Sebastian,

Varghese

et al. 2024

Sustainable Food Technol.

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Section: Introductionmentioning

confidence: 99%

A metamaterial based sensor for moisture and density of cereal flours

P. V.,

Sebastian,

Varghese

et al. 2024

Sustainable Food Technol.

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Complex permittivity measurement technique using metamaterial broadside coupled split ring resonator

Sebastian

Joseph

Aswathi

et al. 2022

Journal of Applied Physics

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A simple and effective method for the determination of complex permittivity of dielectric materials at microwave frequencies using a Broadside Coupled Split Ring Resonator (BCSRR) metamaterial structure is presented. A single BCSRR unit cell placed between the transmitting and receiving probes of a Vector Network Analyzer (VNA) is used as the test probe. Resonance frequencies and bandwidths of transmission curves, measured with and without the sample placed over the BCSRR test probe, are used to determine the real and imaginary parts of the complex permittivity by treating the BCSRR as an LC resonant circuit. Relevant equations connecting equivalent capacitance and resonance frequencies are derived from the basic equivalent circuit parameters of the BCSRR through a quasi-static analysis by considering the fringing fields in its vicinity, especially on the top and bottom. Accuracy of the theoretical formula derived for determining the complex permittivity using the BCSRR is verified through experiments and simulations.

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Breaking the Diffraction Limit Manifold Using Specially Designed Metamaterial Split Ring Resonator

Cited by 2 publications

References 15 publications

A metamaterial based sensor for moisture and density of cereal flours

A metamaterial based sensor for moisture and density of cereal flours

Complex permittivity measurement technique using metamaterial broadside coupled split ring resonator

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