{"title":"Design and Development of High Efficiency Rectenna at 24 GHz for Wireless Power Transfer","authors":"Parthasarathi Samanta, R. Gopika, C. Saha","doi":"10.1109/imarc49196.2021.9714612","DOIUrl":null,"url":null,"abstract":"An efficient design of rectenna at 24GHz which can tolerate power dependent load variation and provide better performance over a wider range of loads for wireless power transfer application, is proposed in this article. The proposed design involves class-F structure to reduce the diode conduction loss over a cycle, and a transmission line resistance compression network (TLRCN) to efficiently deal with the load variation. To reduce the losses further, the concept of on-antenna power combining is explored and one single element dual port microstrip loop antenna having peak gain of more than 5 dBi is designed at 24GHz. A peak efficiency of 66% is achieved at 19dBm input power for the combined rectenna at 24GHz. For a resistive load variation of $(30-120)\\Omega$, the final input impedance variation of (38-57) $\\Omega$ is observed.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/imarc49196.2021.9714612","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
An efficient design of rectenna at 24GHz which can tolerate power dependent load variation and provide better performance over a wider range of loads for wireless power transfer application, is proposed in this article. The proposed design involves class-F structure to reduce the diode conduction loss over a cycle, and a transmission line resistance compression network (TLRCN) to efficiently deal with the load variation. To reduce the losses further, the concept of on-antenna power combining is explored and one single element dual port microstrip loop antenna having peak gain of more than 5 dBi is designed at 24GHz. A peak efficiency of 66% is achieved at 19dBm input power for the combined rectenna at 24GHz. For a resistive load variation of $(30-120)\Omega$, the final input impedance variation of (38-57) $\Omega$ is observed.