摘要
文中提出了一种基于人工表面等离激元的多波束切换天线。该多波束切换天线由6个相同的端射天线围绕同一圆心旋转排列组成,相邻端射天线之间的夹角为60°,端射天线到圆心的距离均为70 mm。每个端射天线由馈源单极子、反射器和能产生人工表面等离激元的开口谐振环结构组成,实现了全向场到定向场的转换及辐射。仿真与测试结果表明,所设计天线在9~10. 8 GHz频段内可以实现波束切换的功能,且具有高增益的特性,平均峰值增益约为19. 3 dBi。
Based on spoof surface plasmon polaritons,a multi-beam switching antenna is proposed,including 6 identical end-fire antennas rotating around the center of the circle. The angle between the near end antennas is 60° and the distance from the end-fire antenna to the center of the circle is 70 mm. Each end-fire antenna consists of a monopole,a reflector and split-ring resonators that can generate spoof surface plasmon polaritons,completing the conversion from the omnidirectional field to directional field and the radiation. Simulation and measurement results show that the proposed antenna can achieve the function of beam switching in frequency bands of 9—10. 8 GHz. The antenna has the characteristic of high gain and the average peak gain is about 19. 3 d Bi.
作者
王友保
刘振
肖顺
WANG Youbao;LIU Zhen;XIAO Shun(School of Electronic ＆ Information Engineering,Nanjing University of Information Science ＆ Technology,Nanjing 210044,China)
出处
《南京邮电大学学报（自然科学版）》
北大核心
2018年第5期13-18,共6页
Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金
国家自然科学基金(61673222)资助项目
关键词
人工表面等离激元
端射天线
波束切换
多波束
高增益
spoof surface plasmon polaritons
end-fire antenna
beam switching
multi-beams
high gain
