{"title":"A Wideband Electromagnetic Energy Harvester Design for Internet of Things (IoT) applications","authors":"Haitham Yousuf Al Ajm, M. Bait-Suwailam","doi":"10.1109/ICECTA57148.2022.9990162","DOIUrl":null,"url":null,"abstract":"In this paper, we propose a wide-band microwave energy harvester that uses concentric split-ring resonators. Numerically simulated using CST and COMSOL Multiphysics, the numerical simulation results are presented here, where wide-band electromagnetic energy harvesting (considering 50% efficiency threshold) is achieved, covering the frequency band from 3 GHz to 5 GHz and beyond. The proposed unit cell consists of a metallic ring with two slits in opposite sides, which resonates well at around 3.7 GHz with its reflection coefficient of −23 dB and peak efficiency reaching 99.3%. The structure will find useful applications in the recharging of ultra-low-power devices, including the Internet of Things sensors.","PeriodicalId":337798,"journal":{"name":"2022 International Conference on Electrical and Computing Technologies and Applications (ICECTA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 International Conference on Electrical and Computing Technologies and Applications (ICECTA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICECTA57148.2022.9990162","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we propose a wide-band microwave energy harvester that uses concentric split-ring resonators. Numerically simulated using CST and COMSOL Multiphysics, the numerical simulation results are presented here, where wide-band electromagnetic energy harvesting (considering 50% efficiency threshold) is achieved, covering the frequency band from 3 GHz to 5 GHz and beyond. The proposed unit cell consists of a metallic ring with two slits in opposite sides, which resonates well at around 3.7 GHz with its reflection coefficient of −23 dB and peak efficiency reaching 99.3%. The structure will find useful applications in the recharging of ultra-low-power devices, including the Internet of Things sensors.
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