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Slotted Waveguide Array Antenna performance enhancement by parasitic elements augmentation

Alhuwaimel, SI; Tong, KF; (2017) Slotted Waveguide Array Antenna performance enhancement by parasitic elements augmentation. In: Wang, V and So, KK, (eds.) iWEM 2017: IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition: Proceedings. (pp. pp. 173-175). Institute of Electrical and Electronics Engineers (IEEE) Green open access

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Abstract

A novel design of Slotted Waveguide Array Antenna (SWGAA), at 8.5 GHz with beamwidth of 11° and > -21 dB sidelobe level, with each slot is augmented with a pair of inverted L-shaped parasitic dipoles is presented in this work. Each dipole is located beside the long edges of the slot. The slot cut from a rectangular waveguide acts as a magnetic dipole while the parasitic dipoles act as electric dipoles. Both dipole types act as radiating elements. If both are designed to radiate at the same frequency at the proper amplitude and phase, the radiation performance can be enhanced. Performance comparisons between conventional SWGAA design and the proposed design are presented in this work.

Type: Proceedings paper
Title: Slotted Waveguide Array Antenna performance enhancement by parasitic elements augmentation
Event: iWEM 2017: IEEE International Workshop on Electromagnetics 2017: Applications and Student Innovation Competition, 30 May - 1 June 2017, London, UK
ISBN-13: 9781509063949
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/iWEM.2017.7968823
Publisher version: https://doi.org/10.1109/iWEM.2017.7968823
Language: English
Keywords: Waveguide, Slot, SWGAA, Parasitic element, Sidelobe Level, Front-to-Back Ratio
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1573962
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