Design of a Highly Efficient Wideband Multi-Frequency Ambient RF Energy Harvester Roy, S, Tiang, JJ, Roslee, MB, Ahmed, MT, Kouzani, Abbas and Mahmud, M A Parvez 2022, Design of a Highly Efficient Wideband Multi-Frequency Ambient RF Energy Harvester, Sensors, vol. 22, no. 2, pp. 1-22, doi: 10.3390/s22020424. Attached Files Name Description MIMEType Size Downloads Title Design of a Highly Efficient Wideband Multi-Frequency Ambient RF Energy Harvester Author(s) Roy, S Tiang, JJ Roslee, MB Ahmed, MT Kouzani, Abbas orcid.org/0000-0002-6292-1214 Mahmud, M A Parvez orcid.org/0000-0002-1905-6800 Journal name Sensors Volume number 22 Issue number 2 Article ID 424 Start page 1 End page 22 Total pages 22 Publisher MDPI Place of publication Basel, Switzerland Publication date 2022 ISSN 1424-8220 Summary For low input radio frequency (RF) power from −35 to 5 dBm, a novel quad-band RF energy harvester (RFEH) with an improved impedance matching network (IMN) is proposed to overcome the poor conversion efficiency and limited RF power range of the ambient environment. In this research, an RF spectral survey was performed in the semi-urban region of Malaysia, and using these results, a multi-frequency highly sensitive RF energy harvester was designed to harvest energy from available frequency bands within the 0.8 GHz to 2.6 GHz frequency range. Firstly, a new IMN is implemented to improve the rectifying circuit’s efficiency in ambient conditions. Secondly, a self-complementary log-periodic higher bandwidth antenna is proposed. Finally, the design and manufacture of the proposed RF harvester’s prototype are carried out and tested to realize its output in the desired frequency bands. For an accumulative −15 dBm input RF power that is uniformly universal across the four radio frequency bands, the harvester’s calculated dc rectification efficiency is about 35 percent and reaches 52 percent at −20 dBm. Measurement in an ambient RF setting shows that the proposed harvester is able to harvest dc energy at −20 dBm up to 0.678 V. Language eng DOI 10.3390/s22020424 Field of Research 0301 Analytical Chemistry 0502 Environmental Science and Management 0602 Ecology 0805 Distributed Computing 0906 Electrical and Electronic Engineering HERDC Research category C1 Refereed article in a scholarly journal Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30161377 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment School of Engineering Open Access Collection Related Links Link Description Link to full-text (open access)   Connect to Elements publication management system Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Thu, 13 Jan 2022, 07:07:54 EST Thu, 13 Jan 2022, 09:54:12 EST Thu, 13 Jan 2022, 14:52:45 EST Thu, 13 Jan 2022, 15:04:39 EST Thu, 27 Jan 2022, 13:58:02 EST Thu, 27 Jan 2022, 16:04:51 EST Thu, 27 Jan 2022, 16:08:19 EST Thu, 27 Jan 2022, 16:12:19 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 36 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Thu, 13 Jan 2022, 09:54:12 EST