A portable wireless monitoring system for sleep apnoea diagnosis based on active RFID technology

Yang, Y; Karmakar, N; Zhu, X

A portable wireless monitoring system for sleep apnoea diagnosis based on active RFID technology

Yang, Y

Karmakar, N Zhu, X

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Publication Type:: Conference Proceeding
Citation:: Asia-Pacific Microwave Conference Proceedings, APMC, 2011, pp. 187 - 190
Issue Date:: 2011-12-01

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Field	Value	Language
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156	en_US
dc.contributor.author	Karmakar, N	en_US
dc.contributor.author	Zhu, X https://orcid.org/0000-0002-5814-394X	en_US
dc.date.issued	2011-12-01	en_US
dc.identifier.citation	Asia-Pacific Microwave Conference Proceedings, APMC, 2011, pp. 187 - 190	en_US
dc.identifier.isbn	9780858259744	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119858
dc.description.abstract	A novel portable wireless monitoring system for sleep apnoea diagnosis is presented in this paper. The presented system is composed of two main parts. The first is an on-body sensor system; the second is a reader and base station. In order to minimize the physical size of the on-body sensors and to avoid interference with 2.4 GHz wireless applications, the system is designed to operate in the 5.8 GHz ISM band. Each on-body sensor system consists of a physiological signal detection circuit, an analogue-to-digital convertor (ADC), a microcontroller (MCU), a transceiver, a channel selection bandpass filter (BPF) and a narrow band antenna. The reader uses 6 narrow band antennas, 6 channel selection BPFs, a transceiver and a MCU. Instead of dealing with channel selection at baseband, multiple passive BPFs at the RF front-end are adopted to select the desired signals, in order to minimize the power consumption and cost of the overall system. Moreover, a 5.8 GHz circular patch antenna is simulated and measured. Both the simulated return loss of 21 dB and the measured one of 26 dB have a 10 dB bandwidth of 140 MHz which satisfies the requirements for the reader system. The measured antenna gain from 5.725 GHz to 5.875 GHz is more than 7.5 dBi. Furthermore, the 3 dB beam-width is about 60° and the front to back ratio is 14 dB. © 2011 Engineers Australia.	en_US
dc.relation.ispartof	Asia-Pacific Microwave Conference Proceedings, APMC	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	A portable wireless monitoring system for sleep apnoea diagnosis based on active RFID technology	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:

A novel portable wireless monitoring system for sleep apnoea diagnosis is presented in this paper. The presented system is composed of two main parts. The first is an on-body sensor system; the second is a reader and base station. In order to minimize the physical size of the on-body sensors and to avoid interference with 2.4 GHz wireless applications, the system is designed to operate in the 5.8 GHz ISM band. Each on-body sensor system consists of a physiological signal detection circuit, an analogue-to-digital convertor (ADC), a microcontroller (MCU), a transceiver, a channel selection bandpass filter (BPF) and a narrow band antenna. The reader uses 6 narrow band antennas, 6 channel selection BPFs, a transceiver and a MCU. Instead of dealing with channel selection at baseband, multiple passive BPFs at the RF front-end are adopted to select the desired signals, in order to minimize the power consumption and cost of the overall system. Moreover, a 5.8 GHz circular patch antenna is simulated and measured. Both the simulated return loss of 21 dB and the measured one of 26 dB have a 10 dB bandwidth of 140 MHz which satisfies the requirements for the reader system. The measured antenna gain from 5.725 GHz to 5.875 GHz is more than 7.5 dBi. Furthermore, the 3 dB beam-width is about 60° and the front to back ratio is 14 dB. © 2011 Engineers Australia.

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http://hdl.handle.net/10453/119858