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Agilent Basics of Measuring the Dielectric Properties of ...
AgilentBasics of Measuring the Dielectric Properties of MaterialsApplication NoteContents Constant ..4 Permeability ..7 Electromagnetic (dipolar) polarization ..11 Electronic and atomic polarization ..11 Relaxation time ..12 Debye Relation ..12 Cole-Cole conductivity ..13 Interfacial or space charge polarization .. 14 Measurement analyzers ..15 Impedance analyzers and LCR meters ..16 Fixtures ..16 Software ..16 Measurement Coaxial probe ..17 Transmission line ..20 Free space ..23 Resonant cavity ..25 Parallel plate ..27 Comparison of IntroductionEvery material has a unique set of electrical characteristics that are dependent on its Dielectric Properties . Accurate measurements of theseproperties can provide scientists and engineers with valuable information toproperly incorporate the material into its intended application for moresolid designs or to monitor a manufacturing process for improved qualitycontrol. A Dielectric materials measurement can provide critical design parameterinformation for many electronics applications.
From the point of view of electromagnetic theory, the definition of electric displacement (electric flux density) D f is: D f = eE where e= e* = e 0e r is the absolute permittivity (or permittivity), e r is the relative permittivity, e 0 ≈ 1 36π x 10-9 F/m is the free space permittivity and E …
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