Reconfigurable circularly polarized cross-dipole antenna with a near-field resonant parasitic element

Ta, SX; Park, I; Ziolkowski, RW

Reconfigurable circularly polarized cross-dipole antenna with a near-field resonant parasitic element

Ta, SX Park, I Ziolkowski, RW

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Publication Type:: Conference Proceeding
Citation:: IET Conference Publications, 2018, 2018 (CP741)
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Ta, SX	en_US
dc.contributor.author	Park, I	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.date.available	2020-05-25T19:02:34Z
dc.date.issued	2018-01-01	en_US
dc.identifier.citation	IET Conference Publications, 2018, 2018 (CP741)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130515
dc.description.abstract	© Institution of Engineering and Technology.All Rights Reserved. This paper presents a polarization switchable circularly polarized (CP) antenna that consists of a compact single-feed crossed dipole loaded with a near-field resonant parasitic (NFRP) element. This antenna is placed above a metallic reflector to enhance its gain and broadside radiation pattern. A meander line with an arrowhead-shaped ending was applied to all arms of the crossed dipole and NFRP elements for compactness. By adjusting the end size of the NFRP element, the antenna was capable of switching its polarization from right-hand circular polarization to left-hand circular polarization and vice versa. The reconfigurability is realized by controlling the ON/OFF states of 8 PIN-diodes, which are inserted into the arrowhead endings of the NFRP element. For the RHCP mode, the antenna yields a \|S11\| < -10 dB bandwidth of 1.465-1.665 GHz and a 3-dB axial ratio (AR) bandwidth of 1.535-1.590 GHz. For the LHCP mode, the antenna yields a \|S11\| < -10 dB bandwidth of 1.50-1.69 GHz and a 3-dB AR bandwidth of 1.545-1.585 GHz. Moreover, in both modes, the antenna yields a good broadside radiation pattern with a gain of > 6.0 dBic and a radiation efficiency of > 70% across its operational bandwidth.	en_US
dc.relation.ispartof	IET Conference Publications	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Reconfigurable circularly polarized cross-dipole antenna with a near-field resonant parasitic element	en_US
dc.type	Conference Proceeding
utslib.citation.volume	CP741	en_US
utslib.citation.volume	2018	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.issue	CP741	en_US
pubs.publication-status	Published	en_US
pubs.volume	2018	en_US

Abstract:

© Institution of Engineering and Technology.All Rights Reserved. This paper presents a polarization switchable circularly polarized (CP) antenna that consists of a compact single-feed crossed dipole loaded with a near-field resonant parasitic (NFRP) element. This antenna is placed above a metallic reflector to enhance its gain and broadside radiation pattern. A meander line with an arrowhead-shaped ending was applied to all arms of the crossed dipole and NFRP elements for compactness. By adjusting the end size of the NFRP element, the antenna was capable of switching its polarization from right-hand circular polarization to left-hand circular polarization and vice versa. The reconfigurability is realized by controlling the ON/OFF states of 8 PIN-diodes, which are inserted into the arrowhead endings of the NFRP element. For the RHCP mode, the antenna yields a |S11| < -10 dB bandwidth of 1.465-1.665 GHz and a 3-dB axial ratio (AR) bandwidth of 1.535-1.590 GHz. For the LHCP mode, the antenna yields a |S11| < -10 dB bandwidth of 1.50-1.69 GHz and a 3-dB AR bandwidth of 1.545-1.585 GHz. Moreover, in both modes, the antenna yields a good broadside radiation pattern with a gain of > 6.0 dBic and a radiation efficiency of > 70% across its operational bandwidth.

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http://hdl.handle.net/10453/130515