电波科学学报2024，Vol.39Issue(6)：1051-1057,7.DOI:10.12265/j.cjors.2023286
一种双频高增益共口径天线设计
A design of dual-band high-gain shared-aperture antenna
摘要
Abstract
To satisfy the requirement for dual-band high-gain antennas of wireless systems,the design of a dual-band high-gain shared-aperture antenna is presented in this paper.The proposed work hybridizes an X-band Fabry-Perot cavity antenna and a Ka-band folded transmitarray,realizing high-directivity beams at two bands and a aperture reuse efficiency of 100%.Two kinds of unit cells are designed to constitute the aperture layer and the ground layer of the antenna,and they have distinct functions at X-and Ka-bands for the incident electromagnetic wave to satisfy the requirements of the Fabry-Perot cavity antenna and the folded transmitarray.To validate the methodology,an experiment is carried out.A good agreement is observed between the simulated and measured results.The proposed antenna realizes an effective bandwidth(for reflection coefficient≤-10 dB and gain variation≤3 dB)from 8.62 to 9.35 GHz at the lower band,and from 24 to 34 GHz at the upper band.Broadside radiation patterns are observed at both bands.The peak gain at two bands is 15.5 dBi and 23.1 dBi,respectively.Due to the merits of wide bandwidths,high gain and 100%aperture reuse efficiency,the proposed design is promising for future wireless communication systems.关键词
双频/共口径/法布里-佩罗天线/折叠透射阵天线/高增益Key words
dual band/shared aperture/Fabry-Perot cavity antenna/folded transmitarray/high gain分类
电子信息工程引用本文复制引用
高帅,黄衡..一种双频高增益共口径天线设计[J].电波科学学报,2024,39(6):1051-1057,7.基金项目
国家自然科学基金(62071408) （62071408）
