About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Local-mode analysis of continuous transitions in rectangular waveguides
Abstract
A local-modes technique is employed for the rigorous full-wave computer-aided analysis of rectangular waveguide components with continuous variations of the transverse cross section along the propagation direction. Fields in the varying waveguide sections are expanded as a sum of the modes of the locally straight waveguide, which, as a result of the longitudinal variations, are coupled to each other; the coupling coefficients depend on the transition geometry and are easily evaluated analytically. The technique offers considerable efficiency and is particularly suitable for the CAD of a large class of waveguide components like tapers, mitered bends, transitions, etc. Examples of applications and comparisons with reference data are illustrated for the case of H-plane transitions in rectangular waveguides. © 1998 John Wiley & Sons, Inc.