Henry Lei;Tirth Patel;Jerry Lopez;J. Devin MacKenzie
{"title":"Screen-Printed Flexible Antennas for 24-GHz ISM Band and mmWave Applications","authors":"Henry Lei;Tirth Patel;Jerry Lopez;J. Devin MacKenzie","doi":"10.1109/JFLEX.2025.3560936","DOIUrl":null,"url":null,"abstract":"In this work, the flexible antennas additively manufactured via screen printing of copper conductive inks are presented. Antennas, such as straight dipoles, meandering dipoles, and circular disk monopoles, are designed for operation at 24 GHz and then manufactured on a variety of flexible substrates, namely, polyimide, glass, and alumina ribbon ceramics (ARCs). A resolution of <inline-formula> <tex-math>$50~\\mu $ </tex-math></inline-formula>m width and spacing was obtained at a printing speed of 10000 mm<sup>2</sup>/s. A minimum bend radius of 6.25 mm was achieved for the flexible antennas. Antenna’s return loss and antenna pattern were measured and found to be in agreement with simulation. To the best of our knowledge, this is the first report of a flexible screen-printed 24-GHz antenna on ceramics with copper metallization.","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"4 4","pages":"138-145"},"PeriodicalIF":0.0000,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Journal on Flexible Electronics","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10965646/","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 work, the flexible antennas additively manufactured via screen printing of copper conductive inks are presented. Antennas, such as straight dipoles, meandering dipoles, and circular disk monopoles, are designed for operation at 24 GHz and then manufactured on a variety of flexible substrates, namely, polyimide, glass, and alumina ribbon ceramics (ARCs). A resolution of $50~\mu $ m width and spacing was obtained at a printing speed of 10000 mm2/s. A minimum bend radius of 6.25 mm was achieved for the flexible antennas. Antenna’s return loss and antenna pattern were measured and found to be in agreement with simulation. To the best of our knowledge, this is the first report of a flexible screen-printed 24-GHz antenna on ceramics with copper metallization.
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