Vourch, C. J. and Drysdale, T. D. (2014) Directivity enhancement of V-band “Bull’s eye” antenna with dielectric superstrate. In: 2014 Loughborough Antennas & Propagation Conference, Loughborough, UK, 10-11 Nov 2014,
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Abstract
We study the performance of a V-band “Bull’s eye” antenna with addition of a dielectric superstrate. We find that a single 0.25mm RF-35 Taconic substrate, at a distance of 6.5mm from the “Bull’s eye” antenna structure, allows a directivity enhancement of 2.6dB, to reach 21.6dBi at 60GHz. Efficiency remains almost the same as without and bandwidth is slightly increased. Comparison of the E- and H-plane radiation patterns shows an improvement of the directivity with reduction of the secondary lobes. We discuss the directivity improvement over the frequency band of interest (55-65GHz) and investigate the cause of the enhancement by considering field plots and angle dependant Fresnel reflection from the superstrate.
Item Type: | Conference Proceedings |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Drysdale, Dr Timothy |
Authors: | Vourch, C. J., and Drysdale, T. D. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Copyright Holders: | Copyright © 2014 The Authors |
Publisher Policy: | Reproduced with the permission of the authors |
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