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Modelling of Whispering Gallery Mode Resonators for Dielectric Measurement Applications

Author

Listed:
  • Srinesh Thakur
  • Dipra Paul
  • Sai Kiran Oruganti
  • Dimitrios A Karras

Abstract

This study presents a method for measuring the permittivity of dielectric materials using a whispering gallery mode ring resonator. By detecting changes in coupling resulting from variations in resonant frequency caused by alterations in dielectric constant, the method offers a reliable means of characterizing dielectric properties. Operating within the 5-6 GHz frequency range, the presented resonator design leverages printed circuit board (PCB) technology and FR4 substrate material for cost-effective fabrication and flexibility in design. Through comprehensive electromagnetic simulations using ANSYS HFSS software, the study optimizes resonator parameters to enhance sensitivity and effectiveness for various applications. Experimental validation demonstrates exceptional coupling efficiency and sensitivity, underscoring the potential of whispering gallery mode resonators for environmental monitoring, chemical sensing, telecommunications, and biomedical diagnostics. This research contributes to advancing sensing technology, offering valuable insights into the design and optimization of whispering gallery mode resonators for practical use. Further exploration is warranted to fully realize their potential across diverse applications and operating conditions.

Suggested Citation

  • Srinesh Thakur & Dipra Paul & Sai Kiran Oruganti & Dimitrios A Karras, 2024. "Modelling of Whispering Gallery Mode Resonators for Dielectric Measurement Applications," SPAST Reports, SPAST Foundation, vol. 1(4).
    • Handle: RePEc:bps:jspath:v:1:y:2024:i:4:id:4892
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    File URL: https://spast.org/article/view/4892/386
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