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Dielectric properties of beryllia ceramics in the near-millimeter wavelength range |
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| Authors: | Joseph P Sattler and George J Simonis |
| Institution: | (1) Harry Diamond Laboratories, U. S. Army Electronics Research and Development Command, 2800 Powder Mill Road, 20783 Adelphi, MD |
| Abstract: | We report the refractive indices and absorption coefficients for four beryllia (BeO) ceramic samples. These dielectric properties have been measured over the range from 4 to 18 cm–1 by use of a Michelson interferometer. The index n, follows the linear relationship n=0.6517 cm3/g× +0.7130 with density, , over the range 2.8<<3.0 g/cm3. |
| Keywords: | Near-millimeter wave far-infrared millimeter wave sub-millimeter spectroscopy materials refractive index absorption coefficient loss tangent beryllia |
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