Title :
Full-wave analysis of a split-cylinder resonator for nondestructive permittivity measurements
Author :
Janezic, Michael D. ; Baker-Jarvis, James
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
This paper presents a full-wave analysis of the split-cylinder resonator. We outline a model where the fringing fields are rigorously accounted for and the resonance condition is derived. Using this model, a method for nondestructively measuring the complex permittivity of materials is examined. Measurements of the complex permittivity for low-loss dielectric materials using the split-cylinder resonator agree well with measurements made in a cylindrical cavity. An uncertainty analysis for the complex permittivity is also provided
Keywords :
cavity resonators; microwave measurement; nondestructive testing; permittivity measurement; complex permittivity; cylindrical cavity; fringing fields; full-wave analysis; low-loss dielectric materials; nondestructive permittivity measurements; resonance condition; split-cylinder resonator; uncertainty analysis; Dielectric loss measurement; Dielectric losses; Dielectric materials; Dielectric measurements; Geometry; Magnetic field measurement; Permittivity measurement; Resonance; Resonant frequency; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
