Evaluation of the Equivalent Lumped Element Parameters of Modified Microstrip Ring Resonator
Microstrip ring resonator (MRR) sensor was modeled by simple equivalent lumped element circuits in free space based on simulation data obtained from Microwave Office (AWR) simulator and comparison was made with the measurements using the E5071C Network Analyzer. The calculated reflection coefficient, |G| and complex input impedance Zin using lumped element model were compared with the measurements results. Both results showed well agreement with a little discrepancy, basically due to imperfect soldering. The MRR was designed to have operating frequencies between 0.5 GHz and 4.5 GHz. The maximum surrounding of magnetic field, Hϕ is within 15 A/m in free space.
Dr. Denni Kurniawan, Fethma M. Nor and Rozzeta Dolah
Y. L. Then et al., "Evaluation of the Equivalent Lumped Element Parameters of Modified Microstrip Ring Resonator", Applied Mechanics and Materials, Vol. 735, pp. 278-281, 2015