Title :
Characterization of microwave substrates with split- cylinder and split-coaxial-cylinder resonators
Author :
Dankov, Plamen I. ; Hadjistamov, Boyan N.
Author_Institution :
Univ. of Sofia, Sofia
Abstract :
Two types of split-cylinder resonators are used for characterization of the longitudinal dielectric parameters of reinforced RF substrates. The novelty of the method is the introduced theoretical 3D model of the measurement cavities, which allow determination of the parameters with the help of arbitrary 3D electromagnetic simulators. Two known isotropic and anisotropic materials are measured with circular and split-cylinder resonators and the results are compared. One of the considered structures - the split-coaxial resonator with movable inner post cylinder - allows substrate measurements at lower frequencies compared with the resonance frequency of the ordinary split-cylinder resonator.
Keywords :
anisotropic media; cavity resonators; computational electromagnetics; dielectric losses; dielectric materials; dielectric resonators; finite difference time-domain analysis; finite element analysis; microwave materials; microwave measurement; nondestructive testing; permittivity; 3D electromagnetic simulators; anisotropic materials; dielectric constant; dielectric loss factor; isotropic materials; longitudinal dielectric parameters; measurement sensitivity; microwave substrates characterization; nondestructive measurement tool; reinforced RF substrates; split-coaxial-cylinder resonators; split-cylinder resonators; Chromium; Dielectric constant; Dielectric loss measurement; Dielectric materials; Dielectric measurements; Dielectric substrates; Electromagnetic measurements; Frequency measurement; Resonance; Thyristors;
Conference_Titel :
Microwave Conference, 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-001-9
DOI :
10.1109/EUMC.2007.4405347
