A problem of a nonconfocal suspended strip in an elliptical waveguide is analyzed by using
a semianalytical approach, which is the so-called null-field boundary integral-equation …

An efficient method for analysing confocal coaxial elliptical waveguides is presented. Using
elliptical coordinates, the differential Helmholtz equation is transformed into a linear matrix …

We describe here a Finite Difference approach to the mode evaluation for an elliptic
waveguide. The use of 2D elliptical grid allows to take exactly into account the elliptical …

TM and TE modes and eigenvalues for the metallic circular waveguide with a cross-shaped
insert are studied by the method of eigenfunction expansions and domain matching. As the …

The cutoff wavenumbers of eccentric nonconfocal elliptical metallic waveguides are
calculated in this paper. The solution is obtained using expansions in terms of the elliptical …

Consider the vibrations of a circular membrance with a circular core, Wang [1] showed that
when the core diameter shrinks to zero, the frequency decreases to that of a circular …

The separation of variables method along with an addition theorem of Mathieu functions are
employed in this paper to analyze the problem of a nonconfocal suspended strip in an …

This thesis deals with numerical techniques for the computation of modes in electromagnetic
structures with arbitrary geometry. The approach proposed in this work is based on the Finite …

In this paper the elliptic-hyperbolical waveguide is analyzed with the method of the
separation of variables. A suitable set of eigenfunctions is defined and the TE and TM …

This article presents a rigorous analytical treatment of electromagnetic wave propagation in
a new type of Bragg waveguide having elliptical core cross‐section surrounded by Bragg …