Phase radiation characteristics of an open-ended circular waveguide

Anna Shishkova, Sergey Pivnenko, Oleksiy S. Kim, Nikolay Gorobets

Research output: Contribution to journalJournal articleResearchpeer-review


General analytical expressions are derived for the far-field amplitude and phase radiation patterns of an open-ended circular waveguide (OE-CWG) regardless of its radius or the operation frequency for the dominant and symmetric higher-order excitation modes. The derivation is based on the rigorous solution to the problem of diffraction at an open end of a waveguide proposed by Weinstein. The near-field amplitude and phase patterns of an OE-CWG are then calculated using the spherical wave expansion technique. The measurement of the radiation pattern of an OE-CWG was carried out to verify the validity of the derived expressions and a good agreement was obtained.
Original languageEnglish
JournalI E T Microwaves Antennas & Propagation
Issue number3
Pages (from-to)790-797
Publication statusPublished - 2007

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