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Determination of the dielectric constant of materials from effective refractive index measurements

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3 Author(s)
Abbas, Z. ; Dept. of Electron. & Electr. Eng., Leeds Univ., UK ; Pollard, Roger D. ; Kelsall, R.W.

This paper presents an extension to the rectangular dielectric waveguide technique to obtain the permittivity of samples iteratively from the effective refractive index measurements by using the solution of the wave equation. The effective refractive index is presented for several samples in the 33 GHz to 50 GHz frequency range. The method is very fast and simple and provides an accuracy of better than 1% for the determination of permittivity of materials

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Instrumentation and Measurement, IEEE Transactions on  (Volume:47 ,  Issue: 1 )