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Relative Permittivity and Loss Tangent Measurement Using the NIST 60 mm Cylindrical Cavity

Published

Author(s)

Michael D. Janezic, Jolene D. Splett, Kevin J. Coakley, Raian K. Kaiser, John H. Grosvenor Jr

Abstract

In order to develop a dielectric Standard Reference Material (SRM), a measurement system for measuring the relative permittivity and loss tangent of dielectric materials is presented. To achieve the necessary level of measurement accuracy, we selected the circular-cylindrical cavity method. Expressions for determining the relative permittivity and loss tangent are derived from theoretical models of an empty and sample-loaded circular-cylindrical cavity. We preent a description of the circular-cylindrical cavity's specifications in addition to the detailed measurement procedure we employed. We present a comprehensive uncertainty analysis for both the relative permittivity and loss tangent as well as a measurement assurance plan for ensuring the integrity of the measurment system.
Citation
Special Publication (NIST SP) - 260-159
Report Number
260-159

Keywords

Circular-Cylindrical cavity, dielectric constant, loss tangent, relative permittivity, resonator.

Citation

Janezic, M. , Splett, J. , Coakley, K. , Kaiser, R. and Grosvenor Jr, J. (2005), Relative Permittivity and Loss Tangent Measurement Using the NIST 60 mm Cylindrical Cavity, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.SP.260-159, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31716 (Accessed June 19, 2024)

Issues

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Created August 31, 2005, Updated October 20, 2022