2019/08/12 by Ala Eldin Omer, Omer, Ala Eldin, George Shaker +3
Engineering · #Acoustic Wave Resonator Technologies #Advanced Fiber Optic Sensors #Applied Physics (physics.app-ph) #FOS: Electrical engineering #FOS: Physical sciences #Microwave and Dielectric Measurement Techniques #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1909.12388
openalex publication_date 2019/08/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this study, an integrated low-cost and complexity mm-wave structure of Whispering Gallery Mode (WGM) is proposed for sensing the glucose levels in mimicking aquatic solutions of concentrations similar to type 2 diabetics. The bio-sensor is composed of a curved dielectric waveguide coupled to a dielectric disc resonator that is loaded with the glucose sample under test. The intense WGM field induced towards the boundary of the DDR is exploited to detect the slight variations in the dielectric properties of different glucose levels via tracing the variations in the magnitude of the transmission coefficient S21 in the mm-wave frequency band (49-70 GHz). The WGM resonator shows a high sensitivity performance (0.025-0.077 dB/(mg/dL)) at the lower-order modes WGH600 and WGH700 as demonstrated by simulations in a 3D full-wave EM solver (Ansys HFSS).