Abstract

Starting from Maxwell’s equations it is shown that any inhomogeneous cylindrical guiding structure can be simulated by two circuits. The symmetrical TE and TM modes that can be supported by the structure are obtainable from the resonance condition in the corresponding circuits, which are uncoupled in this case. In all other cases the circuits remain coupled. An appropriate decoupling technique leads then to two new circuits whose resonance condition yields the HE and the EH hybrid modes of the structure. In all cases the resonance condition can be studied by means of a simple algorithm. Characteristic values are easily obtainable by implementing the algorithm on a small microcomputer.

© 1983 Optical Society of America

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