电子学报2024，Vol.52Issue(2)：477-485,9.DOI:10.12263/DZXB.20220840
加载超表面的宽带低剖面双极化交叉偶极子天线
Broadband Low-Profile Dual-Polarized Crossed-Dipole Antenna Loaded with Metasurface
摘要
Abstract
In this paper,a broadband low-profile dual-polarized cross-dipole antenna loaded with a metasurface(MS)is proposed.The antenna is consisted of three parts:a pair of crossed dipoles,four parasitic patches,and a metasurface structure.The crossed dipoles are used to achieve dual-polarization characteristics of the antenna.By loading parasitic patches above the dipoles and slotting the dipole arms,the impedance bandwidth of the antenna is extended,and the low profile of the antenna is achieved by replacing the metal reflector below the dipole with a metasurface.In order to improve the isolation between the input ports,four metal shorting columns are introduced.The simulation and measured results show that the impedance bandwidth of |S11|<-10 dB is 42.5%(2.26～3.48 GHz),and the port isolation and cross-polariza-tion within the bandwidth range are greater than 21 dB and below-31 dB,respectively.The size is only 0.5λ0´0.5λ0´ 0.074λ0(λ0 is the wavelength of free space corresponding to the operating frequency of 2.9 GHz).关键词
双极化/超表面/寄生贴片/低剖面/宽带Key words
dual-polarization/metasurface/parasitic patches/low-profile/broadband分类
信息技术与安全科学引用本文复制引用
黄文,王冲,周贤超,宋赟,虢占坤,任仪..加载超表面的宽带低剖面双极化交叉偶极子天线[J].电子学报,2024,52(2):477-485,9.基金项目
国家自然科学基金(No.61871063) National Natural Science Foundation of China(No.61871063) （No.61871063）
