Title :
The Application of the Discrete Mode Matching Method to Noncircular Dielectric Waveguides
Author :
Heckler, Marcos V T ; Dreher, Achim
Author_Institution :
Inst. of Commun. & Navigation, Wessling
Abstract :
This letter presents an extension of the discrete mode matching method to the analysis of dielectric waveguides with noncircular cross sections. The problem is analyzed in cylindrical coordinates expanding the fields in terms of Bessel functions. Matching of the fields tangential to the interfaces between different dielectric layers is ensured by applying the proper boundary conditions. The mathematical formulation is given in this letter, followed by its application to compute the propagation constants in elliptical dielectric waveguides.
Keywords :
Bessel functions; dielectric waveguides; mode matching; Bessel functions; discrete mode matching application; elliptical dielectric waveguides; fields tangential matching; non-circular cross sections; noncircular dielectric waveguides; Boundary conditions; Computer applications; Data communication; Dielectric constant; Helium; Interferometers; Mode matching methods; Optical fiber polarization; Partial differential equations; Propagation constant; Conformal structures; discrete mode matching (DMM); elliptical dielectric waveguides;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.903430
