Progress toward THz antenna designs with high directivity and high efficiency

Zhu, N; Ziolkowski, RW

Progress toward THz antenna designs with high directivity and high efficiency

Zhu, N Ziolkowski, RW

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Publication Type:: Conference Proceeding
Citation:: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2013, pp. 2271 - 2272
Issue Date:: 2013-12-01

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Field	Value	Language
dc.contributor.author	Zhu, N	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.date.issued	2013-12-01	en_US
dc.identifier.citation	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2013, pp. 2271 - 2272	en_US
dc.identifier.isbn	9781467353175	en_US
dc.identifier.issn	1522-3965	en_US
dc.identifier.uri	http://hdl.handle.net/10453/120127
dc.description.abstract	We present three linearly polarized photoconductive terahertz (THz) antenna designs for a THz imaging system that we are constructing. A bow-tie based antenna with a finite ground plane (on the side of the substrate opposite the bow-tie) and DC bias lines included, is the reference design. By making the ground plane larger, one is able to increase the directivity of the bow-tie design at 1.05 THz. On the other hand, by incorporating a metamaterial-inspired structure, which acts as an artificial magnetic conductor (AMC), the directivity is increased by almost 3 dB at 1.05 THz. The simulation results show that the radiation efficiency of this bow-tie AMC-augmented antenna is above 85% at 1.05 THz. A comparison of these three antenna designs is given. © 2013 IEEE.	en_US
dc.relation.ispartof	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)	en_US
dc.relation.isbasedon	10.1109/APS.2013.6711794	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Progress toward THz antenna designs with high directivity and high efficiency	en_US
dc.type	Conference Proceeding
utslib.for	0906 Electrical and Electronic Engineering	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	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

We present three linearly polarized photoconductive terahertz (THz) antenna designs for a THz imaging system that we are constructing. A bow-tie based antenna with a finite ground plane (on the side of the substrate opposite the bow-tie) and DC bias lines included, is the reference design. By making the ground plane larger, one is able to increase the directivity of the bow-tie design at 1.05 THz. On the other hand, by incorporating a metamaterial-inspired structure, which acts as an artificial magnetic conductor (AMC), the directivity is increased by almost 3 dB at 1.05 THz. The simulation results show that the radiation efficiency of this bow-tie AMC-augmented antenna is above 85% at 1.05 THz. A comparison of these three antenna designs is given. © 2013 IEEE.

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http://hdl.handle.net/10453/120127