Zheng,Qinhong; Xie,Fuyao; Liang,Li; Wang,Ruili; Ou,Jiaming(Microwave and Optical Technology Letters, June 20, 2000)
[+]
[-]
Abstract:
A new approach, the multipole theory (MT) method, is
presented for the computation of cutoff wavenumbers of waveguides
partially filled with dielectric. The MT formulation of the eigenvalue
problem of an inhomogeneous waveguide is derived. Representative
computational examples, including dielectric-rod-loaded rectangular and
double-ridged waveguides, are given to validate the theory, and to
demonstrate the degree of its efficiency