CPW馈电的超宽带天线设计  

Design of Ultra-wide Antenna Fed by CPW

作　　者：张馨心 姚爱琴[1] 柴晋强 ZHANG Xinxin;YAO Aiqin;CHAI Jinqiang(School of Communication and Information Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学信息与通信工程学院

出　　处：《压电与声光》2019年第6期894-896,909,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(51727808)

摘　　要：设计了一种基于共面波导(CPW)馈电的超宽带(UWB)天线。该天线由以低成本的FR4为介质基板,以馈线为中心的两个不对称的接地板和一个开口谐振环组成。天线结构简单紧凑,尺寸仅为31.6 mm×48 mm×1.6 mm。通过在其中一侧地板上方增加一个开口谐振环,不仅使天线的工作频带变宽,且也减小了天线的尺寸。最终天线的回波损耗为-10 dB,带宽为2.33~11.75 GHz。结果表明,该文设计的天线适用于无线通信系统。In this paper,an ultra-wideband(UWB)antenna based on coplanar waveguide(CPW)feed was designed.The antenna consists of a low-cost FR4 dielectric substrate,two asymmetric ground plates centered on the feeder,and a split-ring resonator.The antenna structure is simple and compact,and its size is only 31.6 mm×48 mm×1.6 mm.By adding a split-ring resonator above the floor patch on one side,not only the operating band of the antenna is widened,but also the size of the antenna is reduced.The final antenna has a return loss of-10 dB and a bandwidth of 2.33~11.75 GHz.The results show that the antenna designed in this paper can be applied to wireless communication systems.

关 键 词：超宽带天线 共面波导(CPW) 开口谐振环 小型化 

分 类 号：TN914[电子电信—通信与信息系统]