Multioctave frequency selective surface reflector for ultrawideband antennas

Ranga, Y; Matekovits, L; Esselle, KP; Weily, AR

Multioctave frequency selective surface reflector for ultrawideband antennas

Ranga, Y Matekovits, L Esselle, KP Weily, AR

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Antennas and Wireless Propagation Letters, 2011, 10, pp. 219-222
Issue Date:: 2011-04-06

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Field	Value	Language
dc.contributor.author	Ranga, Y
dc.contributor.author	Matekovits, L
dc.contributor.author	Esselle, KP
dc.contributor.author	Weily, AR
dc.date.accessioned	2023-12-03T21:56:36Z
dc.date.available	2023-12-03T21:56:36Z
dc.date.issued	2011-04-06
dc.identifier.citation	IEEE Antennas and Wireless Propagation Letters, 2011, 10, pp. 219-222
dc.identifier.issn	1536-1225
dc.identifier.issn	1548-5757
dc.identifier.uri	http://hdl.handle.net/10453/173648
dc.description.abstract	In this letter, we demonstrate the gain enhancement of an ultrawideband (UWB) antenna, achieved using an appropriately designed multioctave dual-layer frequency selective surface (FSS) reflector. The proposed novel FSS reflects effectively in phase over a bandwidth of about 120%. Hence, significant enhancement in antenna gain has been achieved with a low-profile configuration without compromising the impedance bandwidth of the UWB antenna. The proposed FSS reflector has a low transmission coefficient and linearly decreasing phase over an ultra-wide frequency band, which is the key requirement for providing an effectively in-phase reflection at the antenna plane. The composite structure is compact, with a total height of λ/4, where λ is the free-space wavelength at the lowest operating frequency of 3 GHz. Experimental results show an impedance bandwidth of 122%. The antenna gain is maintained around 7.5 dBi from 3 to 7 GHz. Between 714 GHz, the antenna is more directie with a gain of about 9 dBi with ± 0.5 dB variation. Experimental measurements confirm the predicted wideband antenna performance and gain enhancement due to the FSS reflector. © 2011 IEEE.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Antennas and Wireless Propagation Letters
dc.relation.isbasedon	10.1109/LAWP.2011.2130509
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	4006 Communications engineering
dc.title	Multioctave frequency selective surface reflector for ultrawideband antennas
dc.type	Journal Article
utslib.citation.volume	10
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
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
utslib.copyright.status	closed_access	*
dc.date.updated	2023-12-03T21:56:34Z
pubs.publication-status	Published
pubs.volume	10

Abstract:

In this letter, we demonstrate the gain enhancement of an ultrawideband (UWB) antenna, achieved using an appropriately designed multioctave dual-layer frequency selective surface (FSS) reflector. The proposed novel FSS reflects effectively in phase over a bandwidth of about 120%. Hence, significant enhancement in antenna gain has been achieved with a low-profile configuration without compromising the impedance bandwidth of the UWB antenna. The proposed FSS reflector has a low transmission coefficient and linearly decreasing phase over an ultra-wide frequency band, which is the key requirement for providing an effectively in-phase reflection at the antenna plane. The composite structure is compact, with a total height of λ/4, where λ is the free-space wavelength at the lowest operating frequency of 3 GHz. Experimental results show an impedance bandwidth of 122%. The antenna gain is maintained around 7.5 dBi from 3 to 7 GHz. Between 714 GHz, the antenna is more directie with a gain of about 9 dBi with ± 0.5 dB variation. Experimental measurements confirm the predicted wideband antenna performance and gain enhancement due to the FSS reflector. © 2011 IEEE.

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http://hdl.handle.net/10453/173648