Convergence of numerical solutions of iris-type discontinuity problems
- 1 January 1970
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 8, 384-392
- https://doi.org/10.1109/aps.1970.1150807
Abstract
The convergence of numerical solutions of several iris-type discontinuity problems in waveguides and periodic structures is investigated. It is demonstrated that the numerical solution of a set of equations obtained from a mode matching procedure (which corresponds to an integral equation formulation of the problem) may converge to an incorrect value if an improper ratio is chosen between the number of modal terms in the aperture and the number of terms retained in the kernel of the integral equation. The convergence properties of the set of equations obtained by an alternative mode matching procedure are discussed and general guidelines for efficient numerical computations are indicated.Keywords
This publication has 3 references indexed in Scilit:
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- Relative convergence of the solution of a doubly infinite set of equationsJournal of Research of the National Bureau of Standards, Section D: Radio Propagation, 1963