Title :
Variational expression of the propagation constant for leaky modes
Author :
Kawakami, Shojiro ; Ogusu, Kazuhiko
Author_Institution :
Tohoku University, Research Institute of Electrical Communication, Sendai, Japan
Abstract :
A variational expression of the propagation constant applicable to leaky modes is described, where we consider an eigenvalue problem of a scalar Helmholtz equation. An example is presented to show how the integration involved is carried out.
Keywords :
eigenvalues and eigenfunctions; electromagnetic wave propagation; integration; optical waveguide theory; variational techniques; eigenvalue problem; leaky modes; propagation constant; scalar Helmholtz equation; variational expression;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780050
