Title :
Approximate eigenvalues for a circular rod of arbitrary relative permittivity
Author_Institution :
Yale University, Becton Center, New Haven, USA
Abstract :
A simple and useful approximate expression for the eigenvalues of a circular dielectric or glass waveguide of arbitrary relative permittivity are found. Although the approximation is derived for conditions far from cutoff, it is accurate except close to cutoff.
Keywords :
circular waveguides; fibre optics; optical waveguides; permittivity; circular optical waveguide; eigenvalues;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710070
