Radiation from the Open-ended Over-moded Cylindrical Waveguide

Conference paper (2024)

Authors

T.K. Dash

David Prinsloo Eindhoven University of Technology

Alexander Yarovoy

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Published Date

2024

Language

English

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Abstract

The theory of radiation from an open-ended circular crosssection waveguide is extended by including the excitation of all possible higher-order waveguide modes at the waveguide-to- free-space boundary. The theoretical expressions are formulated using spectral-domain techniques. The validation is performed using the existing commercial tool FEKO with the Method of Moments (MoM) solver for a cylindrical waveguide with the fundamental mode excitation (TE11) and the corresponding higher-order mode, which has the same azimuthal variation as of the fundamental mode, which is (TE12).

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