Flexible Uniplanar Electrically Small Directive Antenna Empowered by a Modified CPW-Feed

Tang, MC; Zhou, B; Ziolkowski, RW

Flexible Uniplanar Electrically Small Directive Antenna Empowered by a Modified CPW-Feed

Tang, MC Zhou, B Ziolkowski, RW

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Publication Type:: Journal Article
Citation:: IEEE Antennas and Wireless Propagation Letters, 2016, 15 pp. 914 - 917
Issue Date:: 2016-01-01

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Field	Value	Language
dc.contributor.author	Tang, MC	en_US
dc.contributor.author	Zhou, B	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.date.issued	2016-01-01	en_US
dc.identifier.citation	IEEE Antennas and Wireless Propagation Letters, 2016, 15 pp. 914 - 917	en_US
dc.identifier.issn	1536-1225	en_US
dc.identifier.uri	http://hdl.handle.net/10453/65239
dc.description.abstract	© 2015 IEEE. A flexible printed near-field resonant parasitic (NFRP) GPS L1 antenna that is a compact, efficient, directive radiator is demonstrated. The simple uniplanar design incorporates a capacitively loaded loop (CLL) resonator, which acts as the NFRP element, and a coplanar waveguide (CPW)-fed semi-loop antenna. A set of slots is introduced into the CPW feedline ground strips. The resulting meander-line-shaped CPW ground strips act as a driven dipole element that is capacitively coupled to the NFRP element in such a manner that when they are properly tuned, nearly complete matching to the 50-Ω source is achieved with no matching circuit, and the pair acts as a two-element endfire array. Parameter studies are reported to illustrate the nuances of the design and its operating mechanisms. The experimental results are in good agreement with their simulated values. The endfire realized gain is 3.57 dBi with a 13.44-dB front-to-back-ratio (FTBR) at its resonance frequency: 1.574 GHz (GPS L1), where the electrical size ka = 0.97. The flexibility of the proposed antenna is demonstrated both numerically and experimentally by mounting it on several cylindrical structures whose curvatures vary over a large range and by confirming that there is little impact on its operational frequency, impedance matching, bandwidth, and radiation characteristics.	en_US
dc.relation.ispartof	IEEE Antennas and Wireless Propagation Letters	en_US
dc.relation.isbasedon	10.1109/LAWP.2015.2480706	en_US
dc.subject.classification	Networking & Telecommunications	en_US
dc.title	Flexible Uniplanar Electrically Small Directive Antenna Empowered by a Modified CPW-Feed	en_US
dc.type	Journal Article
utslib.citation.volume	15	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	15	en_US

Abstract:

© 2015 IEEE. A flexible printed near-field resonant parasitic (NFRP) GPS L1 antenna that is a compact, efficient, directive radiator is demonstrated. The simple uniplanar design incorporates a capacitively loaded loop (CLL) resonator, which acts as the NFRP element, and a coplanar waveguide (CPW)-fed semi-loop antenna. A set of slots is introduced into the CPW feedline ground strips. The resulting meander-line-shaped CPW ground strips act as a driven dipole element that is capacitively coupled to the NFRP element in such a manner that when they are properly tuned, nearly complete matching to the 50-Ω source is achieved with no matching circuit, and the pair acts as a two-element endfire array. Parameter studies are reported to illustrate the nuances of the design and its operating mechanisms. The experimental results are in good agreement with their simulated values. The endfire realized gain is 3.57 dBi with a 13.44-dB front-to-back-ratio (FTBR) at its resonance frequency: 1.574 GHz (GPS L1), where the electrical size ka = 0.97. The flexibility of the proposed antenna is demonstrated both numerically and experimentally by mounting it on several cylindrical structures whose curvatures vary over a large range and by confirming that there is little impact on its operational frequency, impedance matching, bandwidth, and radiation characteristics.

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http://hdl.handle.net/10453/65239