{"title":"A 2-bit 3-D-Printed Reflectarray Antenna Using Cylindrical Rotation-Based Phase-Tunable Elements","authors":"Ao Hu;Keisuke Konno;Qiang Chen","doi":"10.1109/TAP.2024.3451133","DOIUrl":null,"url":null,"abstract":"In this article, a low-cost and mechanically robust approach for the design of mechanically phase-tunable reflectarray (RA) elements operating in the C-band is proposed. The proposed element is composed of an open cylindrical shell made of a nonuniform dielectric material. A 2-bit phase tunability is achieved by implementing mechanical rotation of the open cylindrical shell. The proposed element is fabricated by 3-D-printing technology, and the infill rate of the open cylindrical shell is spatially nonuniform. As a result, the effective relative permittivity of the fabricated open cylindrical shell becomes nonuniform. Phase tunability of the fabricated element is demonstrated numerically and experimentally. An RA antenna composed of the proposed elements is designed and fabricated. It is clarified that the RA antenna demonstrates beam scanning coverage up to 50° while its aperture efficiency is comparable to conventional RA antennas.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"72 10","pages":"7774-7782"},"PeriodicalIF":5.8000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Antennas and Propagation","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10666027/","RegionNum":1,"RegionCategory":"计算机科学","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
In this article, a low-cost and mechanically robust approach for the design of mechanically phase-tunable reflectarray (RA) elements operating in the C-band is proposed. The proposed element is composed of an open cylindrical shell made of a nonuniform dielectric material. A 2-bit phase tunability is achieved by implementing mechanical rotation of the open cylindrical shell. The proposed element is fabricated by 3-D-printing technology, and the infill rate of the open cylindrical shell is spatially nonuniform. As a result, the effective relative permittivity of the fabricated open cylindrical shell becomes nonuniform. Phase tunability of the fabricated element is demonstrated numerically and experimentally. An RA antenna composed of the proposed elements is designed and fabricated. It is clarified that the RA antenna demonstrates beam scanning coverage up to 50° while its aperture efficiency is comparable to conventional RA antennas.
本文提出了一种低成本、机械稳健的方法，用于设计工作在 C 波段的机械相位可调反射阵列（RA）元件。该元件由非均匀介电材料制成的开放式圆柱形外壳组成。通过对开放式圆柱形外壳进行机械旋转，可实现 2 位相位可调。该元件采用三维打印技术制造，开放式圆柱形外壳的填充率在空间上是不均匀的。因此，制作的开放式圆柱形外壳的有效相对介电常数变得不均匀。制作元件的相位可调性通过数值和实验得到了证明。设计并制作了由所提元件组成的 RA 天线。结果表明，RA 天线的波束扫描覆盖范围可达 50°，其孔径效率与传统 RA 天线相当。
期刊介绍：
IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
