A finite-difference technique to compute Eigenvalues and mode distribution of non standard waveguide (and aperture) is presented. It is based on a mixed mesh (cartesian-polar) to avoid discretization of curved edges, and is able to give an accuracy comparable to FEM techniques with a reduced computational burden.
A finite difference polar-catesian grid approach for mode computation in rounded-end waveguides
FANTI, ALESSANDRO;MAZZARELLA, GIUSEPPE
2011-01-01
Abstract
A finite-difference technique to compute Eigenvalues and mode distribution of non standard waveguide (and aperture) is presented. It is based on a mixed mesh (cartesian-polar) to avoid discretization of curved edges, and is able to give an accuracy comparable to FEM techniques with a reduced computational burden.File in questo prodotto:
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