Title :
Finite element analysis of dispersion in waveguides with sharp metal edges
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
fDate :
12/1/1988 12:00:00 AM
Abstract :
The dispersion characteristics of arbitrarily shaped waveguides with sharp metal edges are found by a finite-element method in which the usual polynomials are supplemented by singular trial functions. As in recent approaches, the method solves for the three components of the magnetic field and can thereby avoid spurious modes. Results for a rectangular waveguide with two double ridges and for shielded microstrip on isotropic and anisotropic substrates are presented
Keywords :
dispersion (wave); finite element analysis; rectangular waveguides; strip lines; waveguide theory; anisotropic substrates; arbitrarily shaped waveguides; dispersion characteristics; double ridges; finite-element method; isotropic substrates; magnetic field; polynomials; rectangular waveguide; sharp metal edges; shielded microstrip; singular trial functions; Anisotropic magnetoresistance; Boundary conditions; Electromagnetic waveguides; Finite element methods; Geometry; Magnetic flux; Magnetic shielding; Microstrip; Polynomials; Rectangular waveguides;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
