{"title":"The low-cost inhomogeneous multi-section flat lens antenna with minimum F over D design in Ku-band","authors":"Mohammad Mahdi Taskhiri","doi":"10.1049/mia2.12442","DOIUrl":null,"url":null,"abstract":"<p>This article uses the ray inserting method to design a low-cost inhomogeneous lens in the Ku-band. The focal length to the diametre ratio of the designed lens is 0.45, which is lower than most designed lenses in this area. Also, no approximation is considered to yield the refractive index profile. The refractive index changes from the centre to the sides have been made in two sections to limit the maximum calculated refractive index of the structure to the Plexiglass refractive index. The designed lens proposed a good match to the source and surroundings. The theoretical design is validated by the finite difference time domain scheme and full-wave simulation. The lens structure is realised and fabricated on a multilayer Plexiglass sheet. The results of simulations and experiments indicate good performances of the designed lens in the wide frequency bandwidth.</p>","PeriodicalId":13374,"journal":{"name":"Iet Microwaves Antennas & Propagation","volume":"18 2","pages":"73-81"},"PeriodicalIF":1.1000,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/mia2.12442","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Microwaves Antennas & Propagation","FirstCategoryId":"94","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/mia2.12442","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This article uses the ray inserting method to design a low-cost inhomogeneous lens in the Ku-band. The focal length to the diametre ratio of the designed lens is 0.45, which is lower than most designed lenses in this area. Also, no approximation is considered to yield the refractive index profile. The refractive index changes from the centre to the sides have been made in two sections to limit the maximum calculated refractive index of the structure to the Plexiglass refractive index. The designed lens proposed a good match to the source and surroundings. The theoretical design is validated by the finite difference time domain scheme and full-wave simulation. The lens structure is realised and fabricated on a multilayer Plexiglass sheet. The results of simulations and experiments indicate good performances of the designed lens in the wide frequency bandwidth.
本文采用射线插入法设计了一种低成本的 Ku 波段非均质透镜。设计透镜的焦距与直径比为 0.45,低于该领域的大多数设计透镜。此外,在得出折射率曲线时没有考虑近似值。从中心到两侧的折射率变化被分为两部分,以限制结构的最大计算折射率为有机玻璃折射率。所设计的透镜与光源和周围环境非常匹配。有限差分时域方案和全波模拟验证了理论设计。透镜结构是在多层有机玻璃片上实现和制造的。模拟和实验结果表明,所设计的透镜在宽频带内具有良好的性能。
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Radiowave propagation at all frequencies and environments.
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