Zhaoqiang Gao;Yi Chen Zhong;Yongtao Jia;Jiaqi Zhu;Zhongxun Liu;Ying Liu
{"title":"Quasi-Nondiffractive Multibeam Antennas Based on Phase Shift Surfaces","authors":"Zhaoqiang Gao;Yi Chen Zhong;Yongtao Jia;Jiaqi Zhu;Zhongxun Liu;Ying Liu","doi":"10.1109/TAP.2024.3484170","DOIUrl":null,"url":null,"abstract":"In this article, a method of generating quasi-nondiffractive multibeam is proposed. The phase synthesis method of the far-field multibeam antenna is introduced into the near-field to generate a quasi-nondiffractive multibeam. The optimization based on the reference phase of each beam superposition can effectively suppress the sidelobe of each beam and improve the efficiency of directional power transmission. Even if the Bessel beams are close enough to cause an overlap of their outer rings, it does not affect their nondiffractive characteristics. Four quasi-nondiffractive multibeam antennas are designed, and the results of electromagnetic numerical simulation, full-wave simulation, and experiments are in good agreement. The scan angle, depth of field, and ratio of the electric field magnitudes of each beam can be controlled independently. The proposed antennas make it possible to apply quasi-nondiffractive beams in fields of multitarget wireless power transmission and multiregion signal coverage.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"72 12","pages":"9050-9057"},"PeriodicalIF":4.6000,"publicationDate":"2024-10-25","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/10736401/","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 method of generating quasi-nondiffractive multibeam is proposed. The phase synthesis method of the far-field multibeam antenna is introduced into the near-field to generate a quasi-nondiffractive multibeam. The optimization based on the reference phase of each beam superposition can effectively suppress the sidelobe of each beam and improve the efficiency of directional power transmission. Even if the Bessel beams are close enough to cause an overlap of their outer rings, it does not affect their nondiffractive characteristics. Four quasi-nondiffractive multibeam antennas are designed, and the results of electromagnetic numerical simulation, full-wave simulation, and experiments are in good agreement. The scan angle, depth of field, and ratio of the electric field magnitudes of each beam can be controlled independently. The proposed antennas make it possible to apply quasi-nondiffractive beams in fields of multitarget wireless power transmission and multiregion signal coverage.
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