基于新型共面波导的频率可重构MIMO天线设计
Design of Frequency Reconfigurable MIMO Antenna Based on Novel Coplanar Waveguide
常睿 1李伟 1姚博译 1段俊萍 1张斌珍1
作者信息
- 1. 中北大学 仪器科学与动态测试教育部重点实验室,山西 太原 030051
- 折叠
摘要
设计了一种基于新型共面波导(CPW)频率可重构多输入多输出(MIMO)天线.在天线中使用开关元件,通过控制开关改变CPW的电流长度来实现6.17～9.38 GHz与19.53～25.48 GHz离散频率可调.转换模式不需要额外的匹配电路,使得结构更紧凑.天线单元采用CPW馈电方式,蚀刻在F4B的介质基板上,MIMO配置无需额外的解耦装置便能实现良好的隔离效果.仿真和测试结果表明,单个天线与 MIMO天线均可实现频率可重构特性,天线单元之间的隔离度<-20 dB,相关包络系数<0.05,分集增益接近10 dB,满足设计要求.
Abstract
A frequency reconfigurable multiple input multiple output(MIMO)antenna based on a novel coplanar waveguide(CPW)is designed in this work.The switching elements are used in the antenna to achieve the discrete frequency tunability of discrete frequencies of 6.17-9.38 GHz and 19.53-25.48 GHz by controlling the switch to change the current length of the CPW.The conversion mode does not require additional matching circuits,resulting in a more compact structure.The antenna unit is CPW-fed and etched on the dielectric substrate of F4B,and the MIMO configuration can achieve good isolation without additional decoupling devices.The simulation and test re-sults show that both the single antenna and the MIMO antenna can realize the frequency reconfiguration characteris-tics.Tthe isolation between antenna units is<-20 dB,the correlation envelope coefficient is<0.05,and the di-versity gain is close to 10 dB,which meets the design requirements.
关键词
频率可重构/多输入多输出/高隔离度/MIMO天线Key words
frequency reconfigurable/multiple input multiple output/high isolation/MIMO antenna引用本文复制引用
基金项目
国家自然科学基金资助项目(52175555)
山西省重点研发项目(国际合作)(201803D421043)
国家自然科学基金创新群体资助项目(51821003)
山西省基础研究计划资助项目(20210302123074)
出版年
2024
NETL
NSTL
万方数据