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Modeling of microwave ring resonators using the finite-difference time-domain method (FDTD)

✍ Scribed by Elena Semouchkina; Wenwu Cao; Raj Mittra

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 160 KB
Volume: 24
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(20000320)24:6<392::aid-mop10>3.0.co;2-j

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✦ Synopsis

Scattering parameters of microstrip ring resonators with ) and without slits that are either edge or side coupled to the feedlines are simulated by the FDTD method. The strip conductors on the de¨ice can either be infinitely thin or finite in thickness. The simulations predict the occurrence of resonance peak splitting due to the simultaneous existence of magnetic and electric field coupling mechanisms. Excellent agreement was obtained between the simulation results and the measured data for a ring resonator. We ha¨e also shown that it is possible to use finitedifference time-domain simulations to determine the dielectric constant of substrate materials.

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