Electrically Small CP Unidirectional WPT and Comm Antennas for Amalgamation into a Retrodirective Reconfigurable Intelligent Surface (RRIS) System

Lin, W; Ziolkowski, RW

Electrically Small CP Unidirectional WPT and Comm Antennas for Amalgamation into a Retrodirective Reconfigurable Intelligent Surface (RRIS) System

Lin, W Ziolkowski, RW

Permalink

Publisher:: IEEE
Publication Type:: Conference Proceeding
Citation:: 2023 17th European Conference on Antennas and Propagation (EuCAP), 2023, 00
Issue Date:: 2023-05-31

Closed Access

	Filename	Description	Size
	Electrically_Small_CP_Unidirectional_WPT_and_Comm_Antennas_for_Amalgamation_into_a_Retrodirective_Reconfigurable_Intelligent_Surface_RRIS_System.pdf	Published version	1.1 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Lin, W
dc.contributor.author	Ziolkowski, RW
dc.date	2023-03-26
dc.date.accessioned	2024-04-22T04:36:10Z
dc.date.available	2024-04-22T04:36:10Z
dc.date.issued	2023-05-31
dc.identifier.citation	2023 17th European Conference on Antennas and Propagation (EuCAP), 2023, 00
dc.identifier.isbn	978-1-6654-7541-9
dc.identifier.issn	2164-3342
dc.identifier.uri	http://hdl.handle.net/10453/178189
dc.description.abstract	This paper presents a circularly polarized wireless power transfer WPT and communication antenna system for amalgamation into a retrodirective reconfigurable intelligent surface RRIS system The combination of these two subsystems facilitates tracking the direction of an IoT object and wirelessly powering it The WPT and Comm functions associated with the IoT device itself are enabled by the developed dual CP rectenna antenna system The communication portion of the antenna system sends a pilot signal to the RRIS if it requires power The RRIS uses the field of this received pilot signal to determine the direction of the IoT device needing power and will then transform itself from a RIS into a retrodirective array that transmits a time reversed EM field to it The WPT portion of the antenna then receives the EM field backpropagated to it and efficiently converts the received AC signal into DC power The dual CP antenna system consists of two crossed electrically small Egyptian axe dipoles EADs two crossed capacitively loaded loops CLLs and a delayed loop feeding structure RHCP LHCP Huygens radiation patterns are realized by one the other of two orthogonal excitations of the same radiator Good isolation is observed 15 dB between its transmitting and receiving ports The dual CP rectenna antenna system is designed to operate at 915 MHz in the free industrial scientific and medical ISM band
dc.language	en
dc.publisher	IEEE
dc.relation.ispartof	2023 17th European Conference on Antennas and Propagation (EuCAP)
dc.relation.ispartof	2023 17th European Conference on Antennas and Propagation
dc.relation.ispartofseries	Proceedings of the European Conference on Antennas and Propagation
dc.relation.isbasedon	10.23919/eucap57121.2023.10132987
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Electrically Small CP Unidirectional WPT and Comm Antennas for Amalgamation into a Retrodirective Reconfigurable Intelligent Surface (RRIS) System
dc.type	Conference Proceeding
utslib.citation.volume	00
utslib.location.activity	Florence, Italy
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/Strength - GBDTC - Global Big Data Technologies
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	2024-04-22T04:36:08Z
pubs.finish-date	2023-03-31
pubs.place-of-publication	Piscataway, USA
pubs.publication-status	Published
pubs.start-date	2023-03-26
pubs.volume	00
dc.location	Piscataway, USA

Abstract:

This paper presents a circularly polarized wireless power transfer WPT and communication antenna system for amalgamation into a retrodirective reconfigurable intelligent surface RRIS system The combination of these two subsystems facilitates tracking the direction of an IoT object and wirelessly powering it The WPT and Comm functions associated with the IoT device itself are enabled by the developed dual CP rectenna antenna system The communication portion of the antenna system sends a pilot signal to the RRIS if it requires power The RRIS uses the field of this received pilot signal to determine the direction of the IoT device needing power and will then transform itself from a RIS into a retrodirective array that transmits a time reversed EM field to it The WPT portion of the antenna then receives the EM field backpropagated to it and efficiently converts the received AC signal into DC power The dual CP antenna system consists of two crossed electrically small Egyptian axe dipoles EADs two crossed capacitively loaded loops CLLs and a delayed loop feeding structure RHCP LHCP Huygens radiation patterns are realized by one the other of two orthogonal excitations of the same radiator Good isolation is observed 15 dB between its transmitting and receiving ports The dual CP rectenna antenna system is designed to operate at 915 MHz in the free industrial scientific and medical ISM band

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/178189