Sooyoung Oh;Do Hyeon Kim;Wonwoo Lee;Junhyuk Yang;Changkun Park;Hojin Lee;Sun K. Hong
{"title":"Millimeter-Wave Retrodirective Wireless Power Transfer Applicable to Small Electronic Devices","authors":"Sooyoung Oh;Do Hyeon Kim;Wonwoo Lee;Junhyuk Yang;Changkun Park;Hojin Lee;Sun K. Hong","doi":"10.1109/JMW.2024.3518555","DOIUrl":null,"url":null,"abstract":"With the recent surge in popularity of the Internet of Things (IoT), there also has been a notable increase in research on wirelessly charging IoT enabled electronic devices. Millimeter-wave retrodirective power beaming has recently emerged as a suitable candidate for wirelessly charging small electronic devices. In this paper, we propose and demonstrate a millimeter-wave power beaming concept applicable to IoT ecosystem. The proposed system incorporates a Rotman lens retrodirective beamformer as a Tx unit. To demonstrate the retrodirective power beaming, a Rotman lens beamformer on a waveguide platform is designed to operate at Ka-band. The proposed Rotman lens operates with seven beam ports capable of radiating seven beams within <inline-formula><tex-math>$\\pm$</tex-math></inline-formula>30° steering range. On the receiving end, a rectenna consisting of a patch array and rectifier is designed. We then conducted an end-to-end power beaming experiment as proof of concept, where the results demonstrate the capability of the proposed system as a retrodirective millimeter-wave power beaming system.","PeriodicalId":93296,"journal":{"name":"IEEE journal of microwaves","volume":"5 2","pages":"322-332"},"PeriodicalIF":6.9000,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10819290","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE journal of microwaves","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10819290/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
With the recent surge in popularity of the Internet of Things (IoT), there also has been a notable increase in research on wirelessly charging IoT enabled electronic devices. Millimeter-wave retrodirective power beaming has recently emerged as a suitable candidate for wirelessly charging small electronic devices. In this paper, we propose and demonstrate a millimeter-wave power beaming concept applicable to IoT ecosystem. The proposed system incorporates a Rotman lens retrodirective beamformer as a Tx unit. To demonstrate the retrodirective power beaming, a Rotman lens beamformer on a waveguide platform is designed to operate at Ka-band. The proposed Rotman lens operates with seven beam ports capable of radiating seven beams within $\pm$30° steering range. On the receiving end, a rectenna consisting of a patch array and rectifier is designed. We then conducted an end-to-end power beaming experiment as proof of concept, where the results demonstrate the capability of the proposed system as a retrodirective millimeter-wave power beaming system.