scholarly journals Characterization of Transmission and Reflection of Ku Band Split Ring Resonator Reflectarray using Waveguide Method

2019 ◽  
Vol 8 (2) ◽  
pp. 121-125
Author(s):  
N. Naseer ◽  
B. Saka
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Wide Frequency Range ◽  
Split Ring ◽  
S Parameter ◽  
Reflection Characteristics ◽  
Waveguide Method ◽  
Transmission And Reflection ◽  
Ku Band

In this paper, the analysis, design, and measurement of a split ring resonator reflectarray is presented. The 6 different designs of reflectarray are simulated to analyze the effect of splits position on resonance frequency. The SRR reflectarray which covered highest frequency bandwidth at Ku-band is fabricated and tested. In the fabrication, FR4 substrate is used. The S-parameter measurements of the fabricated reflectarray are performed by waveguide method. The obtained results have good reflection characteristics for a wide frequency range from 12 GHz to 16.5 GHz in Ku-band. The maximum value of reflection is achieved approximately at 15.3 GHz frequency

Split ring resonator inspired microstrip filtenna for Ku-band application

2017 ◽  
Vol 50 (4-6) ◽  
pp. 391-403 ◽  
Author(s):  
Soumya RANJAN MISHRA ◽  
K. L. SHEEJA ◽  
Nagendra P. PATHAK
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Ku Band

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 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 Horn Antennas Loaded with Metamaterial for Satellite band Application

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Ring Resonator ◽  
Horn Antenna ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Horn Antennas ◽  
Notched Band ◽  
Pyramidal Horn ◽  
Operating Bandwidth ◽  
Constitutive Parameters ◽  
Ku Band

A Split Ring Resonator (SRR) as Metamaterial has been loaded on pyramidal horn antennas for Ku band or satellite application. The aim of this work is to exhibit the advantage of metamaterial (SRR) use inside horn antenna; this is mainly enhancement of the bandwidth towards lower frequency and improvement of the radiation pattern gain. The horn antenna is feed by a monopole antenna of optimised length. The obtained results from HFSS simulation concerning the constitutive parameters of the (SRR), show that there is a DNG (Double Negative) permeability and permittivity in the frequency of interest. In this work the operating bandwidth of the proposed antenna (notched band) is in the range of 9.80 GHz to 10.30 GHz, and 10.80 GHz to 11.20 GHz as Ku or satellite application.

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