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The Determination of Impedance with a Double-Slug Transformer

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2 Author(s)
Ellenwood, R.C. ; U. S. Department of Commerce, National Bureau of Standards, Washington 25, D.C. ; Hurlburt, E.H.

Formulas are derived and techniques given by means of which impedance measurements can be made by the use of a double-slug transformer. The required parameters are the length, spacing, position, and "effective" dielectric constant of the slugs, and the wavelength. A means for the experimental determination of the "effective" dielectric constant is described. The only quantitative measurements required are of length. A qualitative recognition of the electrically matched condition is needed.

Published in:

Proceedings of the IRE  (Volume:40 ,  Issue: 12 )