High sensitive microwave sensor based on symmetrical split ring resonator for material characterization

2016 ◽  
Vol 58 (9) ◽  
pp. 2106-2110 ◽  
Author(s):  
Rammah A. Alahnomi ◽  
Z. Zakaria ◽  
E. Ruslan ◽  
Amyrul Azuan Mohd Bahar. ◽  
S. R. Ab Rashid
Keyword(s):  
Material Characterization ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Microwave Sensor

scholarly journals Complex Permittivity Characterization of Liquid Samples Based on a Split Ring Resonator (SRR)

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3385
Author(s):  
Jialu Ma ◽  
Jingchao Tang ◽  
Kaicheng Wang ◽  
Lianghao Guo ◽  
Yubin Gong ◽  
...  
Keyword(s):  
Resonant Frequency ◽  
Complex Permittivity ◽  
Ring Resonator ◽  
High Sensitivity ◽  
Split Ring Resonator ◽  
Debye Model ◽  
Split Ring ◽  
Liquid Samples ◽  
Microwave Sensor

A complex permittivity characterization method for liquid samples has been proposed. The measurement is carried out based on a self-designed microwave sensor with a split ring resonator (SRR), the unload resonant frequency of which is 5.05 GHz. The liquid samples in capillary are placed in the resonant zone of the fabricated senor for high sensitivity measurement. The frequency shift of 58.7 MHz is achieved when the capillary is filled with ethanol, corresponding a sensitivity of 97.46 MHz/μL. The complex permittivity of methanol, ethanol, isopropanol (IPA) and deionized water at the resonant frequency are measured and calibrated by the first order Debye model. Then, the complex permittivity of different concentrations of aqueous solutions of these materials are measured by using the calibrated sensor system. The results show that the proposed sensor has high sensitivity and accuracy in measuring the complex permittivity of liquid samples with volumes as small as 0.13 μL. It provides a useful reference for the complex permittivity characterization of small amount of liquid chemical samples. In addition, the characterization of an important biological sample (inositol) is carried out by using the proposed sensor.

A Microwave Sensor for Leaf Moisture Detection Based on Split-Ring Resonator

2020 ◽  
Author(s):  
YuHeng Yan ◽  
XianQi Lin ◽  
Zhe Chen ◽  
Yang Cai ◽  
Zhi Chen
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Microwave Sensor ◽  
Moisture Detection

Complementary Folded Arm (CFA) Split Ring Resonator for Dielectric Material Characterization

2021 ◽  
Author(s):  
Nurhaifa Alya Roslan ◽  
Anis Afrina Amiruddin ◽  
Ezri Mohd ◽  
Noorsaliza Abdullah
Keyword(s):  
Material Characterization ◽  
Ring Resonator ◽  
Dielectric Material ◽  
Split Ring Resonator ◽  
Split Ring

A Low-Cost Multiple Complementary Split-Ring Resonator-Based Microwave Sensor for Contactless Dielectric Characterization of Liquids

2020 ◽  
Vol 20 (19) ◽  
pp. 11326-11334
Author(s):  
Ahmed Javed ◽  
Ali Arif ◽  
Muhammad Zubair ◽  
Muhammad Qasim Mehmood ◽  
Kashif Riaz
Keyword(s):  
Ring Resonator ◽  
Low Cost ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Dielectric Characterization ◽  
Complementary Split Ring Resonator ◽  
Microwave Sensor

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.

scholarly journals Complimentary split ring resonator sensor with high sensitivity based on material characterization

2020 ◽  
Vol 18 (1) ◽  
pp. 272
Author(s):  
Amer Abbood Al-behadili ◽  
Teodor Petrescu ◽  
Iulia Andreea Mocanu
Keyword(s):  
Material Characterization ◽  
Ring Resonator ◽  
High Sensitivity ◽  
Split Ring Resonator ◽  
Split Ring
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