5.2-GHz RF Power Harvester in 0.18-/spl mu/m CMOS for Implantable Intraocular Pressure Monitoring

Handle URI:
http://hdl.handle.net/10754/281601
Title:
5.2-GHz RF Power Harvester in 0.18-/spl mu/m CMOS for Implantable Intraocular Pressure Monitoring
Authors:
Ouda, Mahmoud H.; Arsalan, Muhammad; Marnat, Loic; Salama, Khaled N. ( 0000-0001-7742-1282 ) ; Shamim, Atif ( 0000-0002-4207-4740 )
Abstract:
A first fully integrated 5.2-GHz CMOS-based RF power harvester with an on-chip antenna is presented in this paper. The design is optimized for sensors implanted inside the eye to wirelessly monitor the intraocular pressure of glaucoma patients. It includes a five-stage RF rectifier with an on-chip antenna, a dc voltage limiter, two voltage sensors, a low dropout voltage regulator, and MOSCAP based on-chip storage. The chip has been designed and fabricated in a standard 0.18-μm CMOS technology. To emulate the eye environment in measurements, a custom test setup is developed that comprises Plexiglass cavities filled with saline solution. Measurements in this setup show that the proposed chip can be charged to 1 V wirelessly from a 5-W transmitter 3 cm away from the harvester chip. The energy that is stored on the 5-nF on-chip MOSCAP when charged to 1 V is 2.5 nJ, which is sufficient to drive an arbitrary 100-μW load for 9 μs at regulated 0.8 V. Simulated efficiency of the rectifier is 42% at -7 dBm of input power.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Sensors Lab
Citation:
Ouda MH, Arsalan M, Marnat L, Shamim A, Salama KN (2013) 5.2-GHz RF Power Harvester in 0.18-/spl mu/m CMOS for Implantable Intraocular Pressure Monitoring. IEEE Trans Microwave Theory Techn 61: 2177-2184. doi:10.1109/TMTT.2013.2255621.
Journal:
IEEE Transactions on Microwave Theory and Techniques
Issue Date:
17-Apr-2013
DOI:
10.1109/TMTT.2013.2255621
Type:
Article
ISSN:
0018-9480; 1557-9670
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6495731
Appears in Collections:
Articles; Sensors Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorOuda, Mahmoud H.en
dc.contributor.authorArsalan, Muhammaden
dc.contributor.authorMarnat, Loicen
dc.contributor.authorSalama, Khaled N.en
dc.contributor.authorShamim, Atifen
dc.date.accessioned2013-04-17T11:02:20Z-
dc.date.available2013-04-17T11:02:20Z-
dc.date.issued2013-04-17en
dc.identifier.citationOuda MH, Arsalan M, Marnat L, Shamim A, Salama KN (2013) 5.2-GHz RF Power Harvester in 0.18-/spl mu/m CMOS for Implantable Intraocular Pressure Monitoring. IEEE Trans Microwave Theory Techn 61: 2177-2184. doi:10.1109/TMTT.2013.2255621.en
dc.identifier.issn0018-9480en
dc.identifier.issn1557-9670en
dc.identifier.doi10.1109/TMTT.2013.2255621en
dc.identifier.urihttp://hdl.handle.net/10754/281601en
dc.description.abstractA first fully integrated 5.2-GHz CMOS-based RF power harvester with an on-chip antenna is presented in this paper. The design is optimized for sensors implanted inside the eye to wirelessly monitor the intraocular pressure of glaucoma patients. It includes a five-stage RF rectifier with an on-chip antenna, a dc voltage limiter, two voltage sensors, a low dropout voltage regulator, and MOSCAP based on-chip storage. The chip has been designed and fabricated in a standard 0.18-μm CMOS technology. To emulate the eye environment in measurements, a custom test setup is developed that comprises Plexiglass cavities filled with saline solution. Measurements in this setup show that the proposed chip can be charged to 1 V wirelessly from a 5-W transmitter 3 cm away from the harvester chip. The energy that is stored on the 5-nF on-chip MOSCAP when charged to 1 V is 2.5 nJ, which is sufficient to drive an arbitrary 100-μW load for 9 μs at regulated 0.8 V. Simulated efficiency of the rectifier is 42% at -7 dBm of input power.en
dc.language.isoenen
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6495731en
dc.rightsArchived with thanks to IEEE Transactions on Microwave Theory and Techniquesen
dc.subjectRFen
dc.subjecton chip antennaen
dc.subjectenergy harvestingen
dc.subjectRFIDen
dc.subjectbatterylessen
dc.subjectimplantableen
dc.title5.2-GHz RF Power Harvester in 0.18-/spl mu/m CMOS for Implantable Intraocular Pressure Monitoringen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentSensors Laben
dc.identifier.journalIEEE Transactions on Microwave Theory and Techniquesen
dc.eprint.versionPre-printen
dc.contributor.institutionElectronics and Communication Department, Faculty of Engineering, Cairo University, Cairo, Egypten
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorArsalan, Muhammaden
kaust.authorMarnat, Loicen
kaust.authorShamim, Atifen
kaust.authorSalama, Khaled N.en
kaust.authorOuda, Mahmoud H.en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.