Smart Cylindrical Dome Antenna Based on Active Frequency Selective Surface

Ding, T; Zhang, S; Zhang, L; Liu, Y

Smart Cylindrical Dome Antenna Based on Active Frequency Selective Surface

Ding, T Zhang, S Zhang, L Liu, Y

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Publication Type:: Journal Article
Citation:: International Journal of Antennas and Propagation, 2017, 2017
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Ding, T	en_US
dc.contributor.author	Zhang, S	en_US
dc.contributor.author	Zhang, L	en_US
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-5466-0184	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	International Journal of Antennas and Propagation, 2017, 2017	en_US
dc.identifier.issn	1687-5869	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126848
dc.description.abstract	© 2017 Tongyu Ding et al. In this paper, we proposed a beamforming antenna, which is realized using an omnidirectional antenna in the center surrounded by a cylindrical smart dome. The smart dome is made of 16 active frequency selective surface columns of which the amplitude and phase response can be continuously tuned by varying the bias voltages of the employed varactors. Thus, the performance of the proposed antenna could achieve higher gain, better nulling level, and more agility than many switch methods-based cylindrical reconfigurable antennas. Moreover, in order to overcome the unavailable analytical synthesis caused by complex mutual coupling between columns, we develop a genetic algorithm based optimization system and conducted a serial of experiments to evaluate the high-gain, nulling, continuously steering, and frequency-invariant ability. The results show that, during the frequency tunable range of the AFSS (2.0 GHz to 2.7 GHz), the antenna can offer an additional gain of up to 6.57 dB and nulling level of -56.41 dBi. For the high-gain modes, the -3 dB beam widths are 26°-34°, which offers enhanced angular resolution compared with other reported beam-sweeping work. Furthermore, the radiation pattern is continuously steerable.	en_US
dc.relation.ispartof	International Journal of Antennas and Propagation	en_US
dc.relation.isbasedon	10.1155/2017/5901625	en_US
dc.title	Smart Cylindrical Dome Antenna Based on Active Frequency Selective Surface	en_US
dc.type	Journal Article
utslib.citation.volume	2017	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	2017	en_US

Abstract:

© 2017 Tongyu Ding et al. In this paper, we proposed a beamforming antenna, which is realized using an omnidirectional antenna in the center surrounded by a cylindrical smart dome. The smart dome is made of 16 active frequency selective surface columns of which the amplitude and phase response can be continuously tuned by varying the bias voltages of the employed varactors. Thus, the performance of the proposed antenna could achieve higher gain, better nulling level, and more agility than many switch methods-based cylindrical reconfigurable antennas. Moreover, in order to overcome the unavailable analytical synthesis caused by complex mutual coupling between columns, we develop a genetic algorithm based optimization system and conducted a serial of experiments to evaluate the high-gain, nulling, continuously steering, and frequency-invariant ability. The results show that, during the frequency tunable range of the AFSS (2.0 GHz to 2.7 GHz), the antenna can offer an additional gain of up to 6.57 dB and nulling level of -56.41 dBi. For the high-gain modes, the -3 dB beam widths are 26°-34°, which offers enhanced angular resolution compared with other reported beam-sweeping work. Furthermore, the radiation pattern is continuously steerable.

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http://hdl.handle.net/10453/126848