Accession Number : AD0624617

Title :   ZERO-CUTOFF MODE IN DIELECTRIC-LOADED COAXIAL WAVEGUIDE,

Corporate Author : BROWN UNIV PROVIDENCE R I

Personal Author(s) : Bolle,D. M. ; Morganstern,M. D.

Report Date : JUN 1965

Pagination or Media Count : 55

Abstract : Microwave ferrite isolators and phase shifters use partial dielectric loading to achieve the circular polarization essential to the operation of such devices. An approximate solution is developed for the lowest propagating mode in coaxial waveguide partially filled with dielectric. The solution is obtained by assuming a value for the propagation constant, and treating the problem as a perturbation of the zero-cutoff TEM mode which would generally exist in the guide were it filled homogeneously with dielectric. The points of maximum circular polarization are shown to lie on the dielectric interface roughly midway between the inner and outer conductors. (Author)

Descriptors :   (*WAVEGUIDES, COAXIAL CABLES), (*MICROWAVE EQUIPMENT, DIELECTRICS), FERRITES, PHASE, POLARIZATION, MICROWAVES, PROPAGATION

Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE