Geometric analysis of reverse mode in decentered annular ring resonator

1990 ◽  
Author(s):  
Kenneth C. Sun
Keyword(s):  
Ring Resonator ◽  
Geometric Analysis ◽  
Annular Ring ◽  
Reverse Mode

scholarly journals A New Approach to Determining Liquid Concentration Using Multiband Annular Ring Microwave Sensor and Polarity Correlator

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1616
Author(s):  
Waleed Sethi ◽  
Ahmed Ibrahim ◽  
Khaled Issa ◽  
Ali Albishi ◽  
Saleh Alshebeili
Keyword(s):  
Ring Resonator ◽  
Material Selection ◽  
Ground Plane ◽  
Microwave Spectrum ◽  
Multiple Frequency ◽  
New Approach ◽  
Annular Ring ◽  
Parallel Lines ◽  
Liquid Concentration ◽  
Microwave Sensor

This article presents a new approach to determining liquid concentration using a new microwave sensor and polarity correlator. The sensor design incorporates an annular ring resonator having inside three parallel lines, a trapezoid ground plane and a co-planar waveguide (CPW) tapered feeder, which altogether achieve multiple frequency bands. Multiple bands of interest are obtained at the lower end of the microwave spectrum, i.e., from 1–6 GHz, as this region is widely accepted in analyzing various liquid samples. The sensor size is 71 × 40 × 1.6 mm3 with material selection based on an economically available FR4 substrate. The sensor is realized and experimentally validated for its sensitivity by utilizing in-lab prepared aqueous solution samples. Further, liquid concentration is determined by adopting a polarity correlator, which is applied to the sensor’s responses obtained at different values.

Complex permeability extraction of FeCo nanoparticles using annular ring resonator and its RF applications

2017 ◽  
Vol 354 (18) ◽  
pp. 8758-8771 ◽  
Author(s):  
Yaaqoub Malallah ◽  
Antarpreet Singh ◽  
Sampada Deshmukh ◽  
Chins Chinnasamy ◽  
Melania Marinescu ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Complex Permeability ◽  
Annular Ring ◽  
Rf Applications ◽  
Feco Nanoparticles

Common pass decentered annular ring resonator

1990 ◽  
Author(s):  
Dale A. Holmes ◽  
Philip D. Briggs ◽  
Al J. Prieto ◽  
A. M. Simonoff ◽  
Kenneth C. Sun ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Annular Ring
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