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Stripline Resonator for Electromagnetic Measurements of Materials



Chriss A. Jones, Y. Kantor, John H. Grosvenor Jr, Michael D. Janezic


A stripline resonator was used to measure the relative dielectric and magnetic properties of materials in the frequency range from 150 MHz to 2 GHz. Measurement accuracy relates strongly to the dimensions of the resonator. Consequently, equations used in the design of a resonator and the resonator design are described and design tradeoffs are discussed. Dielectric and magnetic measurements are included to support the design of our resonator. Discussions of important concepts used in measurement correction, such as sample shape and size and demagnetization, are provided.
Technical Note (NIST TN) - 1505
Report Number


ferrite, loss tangent, permittivity, permeability, stripline, resonator


Jones, C. , Kantor, Y. , Grosvenor Jr, J. and Janezic, M. (1999), Stripline Resonator for Electromagnetic Measurements of Materials, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD (Accessed February 20, 2024)
Created February 22, 1999, Updated October 12, 2021