Dual-Band Microwave Sensor for Investigation of Liquid Impurity Concentration Using a Metamaterial Complementary Split-Ring Resonator

2019 ◽  
Vol 49 (1) ◽  
pp. 385-394 ◽  
Author(s):  
Yogita Khanna ◽  
Y. K. Awasthi
Keyword(s):  
Impurity Concentration ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Dual Band ◽  
Split Ring ◽  
Complementary Split Ring Resonator ◽  
Microwave Sensor ◽  
Liquid Impurity

scholarly journals A Compact Dual-Band Antenna Enabled by a Complementary Split-Ring Resonator-Loaded Metasurface

2017 ◽  
Vol 65 (12) ◽  
pp. 6878-6888 ◽  
Author(s):  
Taiwei Yue ◽  
Zhi Hao Jiang ◽  
Anastasios H. Panaretos ◽  
Douglas H. Werner
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Dual Band ◽  
Split Ring ◽  
Complementary Split Ring Resonator ◽  
Dual Band Antenna

scholarly journals Cost-Effective Flexible CSRR-Based Sensor for Noninvasive Measurement of Permittivity of Biomaterials

2021 ◽  
Vol 10 (1) ◽  
pp. 26
Author(s):  
Faezeh Shanehsazzadeh ◽  
Nafise Azizi ◽  
Hosna Kazerooni Haghighat ◽  
Fatemeh Mashayekhi ◽  
Mehdi Fardmanesh
Keyword(s):  
Ring Resonator ◽  
Point Of Care ◽  
Cost Effective ◽  
Split Ring Resonator ◽  
Point Of Care Testing ◽  
Split Ring ◽  
Tissue Samples ◽  
Complementary Split Ring Resonator ◽  
Microwave Sensor ◽  
Wide Range

A novel, cost-effective, flexible microwave sensor is proposed to facilitate point-of-care testing (POCT) methods for medical diagnosis. The sensor is based on the complementary split-ring resonator (CSRR) to accurately measure the permittivity of biomaterials over a wide range of frequencies. This ability can be used to characterize various materials under test (MUT) such as blood, saliva, tissue samples, etc. The flexibility of the proposed sensor means that it can be used when the accessibility of the sample has technical difficulties, such as on curved surfaces. Firstly, the optimized structure and coupling to the readout transmission line are evaluated using finite element method (FEM) simulations. Then, the prototype of the optimized structure is fabricated on a thin polydimethylsiloxane (PDMS) substrate as a biocompatible economical polymer, and aluminium is carefully chosen for the fabrication of CSRR and readout parts. The proposed flexible sensor is tested and compared to conventional rigid CSRR sensors. The proposed structure withstood the different bending positions well, and also showed an improvement in the results for curved MUT.

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