Accession Number:

AD0269876

Title:

MEASUREMENT OF DIELECTRIC CONSTANT BY USING A RADIAL WAVEGUIDE

Descriptive Note:

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

A method for measuring permittivity, epsilon, is derived from the equations of the fields in a shorted radial wave guide obtained from the Maxwell equations. The method is checked by measuring epsilon r1, the relative dielectric constant, and tan delta, the loss tangent, for three samples by measuring in a radial slot in the guide, the wave length and the VSWR at one minimum of known distance from the short at room temperature and at a frequency of 9375 mcs. The method shows promise of measuring epsilon r1 at frequencies as high as k band and at high temperatures limited only by the metal used in the guide itself. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE