A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements†
1
Antenna and High-Frequency Research Centre, Technological University Dublin, Dublin, Ireland
2
CONNECT—Ireland’s Research Centre for Future Networks and Communications, Westland Row 34, Dublin, Ireland
*
Author to whom correspondence should be addressed.
†
This paper is an extended version of Ahmed, Z.; Hoang, M.H.; McEvoy, P.; Ammann, M.J. Millimetre-wave Planar Bruce Array Antenna. In Proceedings of the 2020 International Workshop on Antenna Technology (iWAT), Bucharest, Romania, 25–28 February 2020.
Sensors 2020, 20(23), 6796; https://doi.org/10.3390/s20236796
Received: 26 October 2020 / Revised: 17 November 2020 / Accepted: 25 November 2020 / Published: 27 November 2020
(This article belongs to the Special Issue Antennas and Propagation)
A printed edge-fed counterpart of the wire Bruce array antenna, for frequency scanning applications, is presented in this paper. The unit-cell of the proposed antenna consists of bowtie and semi-circular elements to achieve wide bandwidth from below 22 GHz to above 38 GHz with open-stopband suppression. The open-stopband suppression enables a wide seamless scanning range from backward, through broadside, to forward endfire. A sidelobe threshold level of −10 dB is maintained to evaluate efficient scanning performance of the antenna. The antenna peak realized gain is 15.30 dBi, and, due to its compact size, has the ability to scan from −64° to 76°.
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Keywords:
meander line antenna; periodic structure; millimeter-wave antenna; frequency scanning antenna; leaky-wave antenna
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Ahmed, Z.; McEvoy, P.; Ammann, M.J. A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements. Sensors 2020, 20, 6796.
AMA Style
Ahmed Z, McEvoy P, Ammann MJ. A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements. Sensors. 2020; 20(23):6796.
Chicago/Turabian StyleAhmed, Zeeshan; McEvoy, Patrick; Ammann, Max J. 2020. "A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements" Sensors 20, no. 23: 6796.
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