Suppression of the slot-mode radiation in a slitted waveguide using periodic slot perturbations
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Sutinjo, Adrian
Okoniewski, M.
Johnston, R.
Date
2009Type
Journal Article
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Sutinjo, A. and Okoniewski, M. and Johnston, R. 2009. Suppression of the slot-mode radiation in a slitted waveguide using periodic slot perturbations. IEEE Antennas and Wireless Propagation Letters. 8: pp. 550-553.
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IEEE Antennas and Wireless Propagation Letters
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Department of Electrical and Computer Engineering
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Abstract
Transverse perturbations in the form of periodic slots in the narrow-wall are employed to suppress the slot-mode radiation in a slitted waveguide. The presence of the perturbations alters the fast wave supported in an unperturbed slot to a slow wave. Slitted waveguides with and without perturbations were compared in full-wave simulations and in measurements. It will be shown that significant and consistent reduction of the slot-mode radiation is achieved with the perturbations. © 2009 IEEE.
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