6 August 1998 Iterative method for the analysis of rectangular waveguides with external effective index correction
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Abstract
We discuss a simple, self-consistent iterative method for the analysis of rectangular waveguides with strong guidance. We show that this method removes the ambiguity of the conventional effective index method and gives a convergent value of the propagation constant both near and far from cutoff. Near the cut-off region, the accuracy can be improved by including an external effective index correction which takes into account the finite mode effect outside the waveguide.
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Yong Ma, Yong Ma, Mee Koy Chin, Mee Koy Chin, Seng Tiong Ho, Seng Tiong Ho, } "Iterative method for the analysis of rectangular waveguides with external effective index correction", Proc. SPIE 3552, Fiber Optic Components and Optical Communication II, (6 August 1998); doi: 10.1117/12.318050; https://doi.org/10.1117/12.318050
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