High-Sensitivity Metamaterial-Inspired Sensor for Microfluidic Dielectric Characterization
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Abstract
A new metamaterial-inspired microwave microfluidic sensor is proposed in this paper. The main part of the device is a microstrip coupled complementary split-ring resonator (CSRR). At resonance, a strong electric field will be established along the sides of CSRR producing a very sensitive area to a change in the nearby dielectric material. A micro-channel is positioned over this area for microfluidic sensing. The liquid sample flowing inside the channel modifies the resonance frequency and peak attenuation of the CSRR resonance. The dielectric properties of the liquid sample can be estimated by establishing an empirical relation between the resonance characteristics and the sample complex permittivity. The…
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709
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4Topics & keywords
Topics
Keywords
- Microfluidics
- Metamaterial
- Materials science
- Dielectric
- Permittivity
- Split-ring resonator
- Microstrip
- Optoelectronics
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