Some novel resonant cavity techniques for the evaluation of artificial dielectrics

Abstract
A method has been developed for the measurement of the electrical properties of metal-loaded polystyrene foam artificial dielectrics in the hundred-megacycle frequency range, by the use of a number of large rectangular TE101 resonant cavities. The nature of the material dictated the use of a fairly large sample to assure measurement of a representative average for the dielectric; a 4" cube was chosen for laboratory studies, and a 2f cube for production quality control.

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