E波段宽带高增益透射阵天线设计  

Design of An E-band Transmitarray Antenna with Wideband and High Gain Characteristics

作　　者：赵智华 彭麟[1] 郑天成 廖欣[1] 姜兴[1] ZHAO Zhi-hua;PENG Lin;ZHENG Tian-cheng;LIAO Xin;JIANG Xing(Key Laboratory of Cognitive Radio and Information Processings Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学认知无线电与信息处理省部共建教育部重点实验室,桂林541004

出　　处：《微波学报》2021年第4期34-38,共5页Journal of Microwaves

基　　金：国家自然科学基金(61661011);广西研究生教育创新计划(YCSW2020151);桂林电子科技大学研究生优秀学位论文培育项目(18YJPYSS06)。

摘　　要：设计了一款E波段高增益天线,该天线由基片集成波导缝隙天线和透射阵组成。为实现足够的相位补偿范围,设计了多种贴片结构单元。该透射阵共有289个单元,口径尺寸为33.065 mm×33.065 mm,该天线的焦径比为0.45。实测结果表明,加载透射阵后,SIW缝隙天线的增益提高了14.63 dB,在74.23 GHz增益达到23.28 dBi,口径效率为24.23%,3 dB增益带宽为10.83%。A high gain antenna operating at E-band is proposed in this paper.The antenna is formed by a substrate integrated waveguide(SIW)slot antenna and a transmitarray(TA).To achieve large phase compensation,several types of element structure are designed for different phase shifting.The TA is composed of 289 units with a size of 33.065 mm×33.065 mm.The focus-to-diameter ratio(F/D)of the transmitarray antenna is 0.45.The measurement results show that the TA effectively increases the gain by 14.63 dB,and the proposed antenna has a 23.28 dBi maximum gain at 74.23 GHz.In addition,the proposed design achieves a 10.83%3 dB gain bandwidth and 24.23%peak aperture efficiency.

关 键 词：透射阵天线 宽带 高增益 

分 类 号：TN820[电子电信—信息与通信工程]