Wei Luo, Xiaoxue Wang, Liu Luo, Yuqi Yang, Min Wang
{"title":"A Wideband Profile-Reduced Transmitarray Antenna Based on Phase-Shifting Elements","authors":"Wei Luo, Xiaoxue Wang, Liu Luo, Yuqi Yang, Min Wang","doi":"10.1002/mop.70379","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>A wideband with profile-reduced transmitarray antenna based on phase-shifting elements is proposed in this letter. The element of transmitarray comprises three metal layers with a double-slotted metal ring aperture and two dielectric layers. The stable transmission coefficient is achieved with compact coupled structures. The simulated electric field on the reference plane is analyzed to optimize the focal-to-diameter (<i>F/D</i>) ratio. Furthermore, a precise optimization method by reducing the phase error in the phase compensation scheme is designed to improve the gain bandwidth of antenna. The optimized transmitarray is fabricated and measured, which consists of 20 × 20 elements. The <i>F/D</i> ratio is reduced by 27%, and the 1-dB and 3-dB gain bandwidths are 22.90% and 28.75%. The peak aperture efficiency reaches 43.06%. The optimization scheme can be applied for broadbanding design of transmitarray with a limited profile height.</p>\n </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"67 9","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microwave and Optical Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mop.70379","RegionNum":4,"RegionCategory":"工程技术","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
A wideband with profile-reduced transmitarray antenna based on phase-shifting elements is proposed in this letter. The element of transmitarray comprises three metal layers with a double-slotted metal ring aperture and two dielectric layers. The stable transmission coefficient is achieved with compact coupled structures. The simulated electric field on the reference plane is analyzed to optimize the focal-to-diameter (F/D) ratio. Furthermore, a precise optimization method by reducing the phase error in the phase compensation scheme is designed to improve the gain bandwidth of antenna. The optimized transmitarray is fabricated and measured, which consists of 20 × 20 elements. The F/D ratio is reduced by 27%, and the 1-dB and 3-dB gain bandwidths are 22.90% and 28.75%. The peak aperture efficiency reaches 43.06%. The optimization scheme can be applied for broadbanding design of transmitarray with a limited profile height.
期刊介绍：
Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas.
- RF, Microwave, and Millimeter Waves
- Antennas and Propagation
- Submillimeter-Wave and Infrared Technology
- Optical Engineering
All papers are subject to peer review before publication
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