一种改进型可重构多波束天线系统设计  

Design of an Improved Reconfigurable Multi-beam Antenna System

作　　者：程锋利 尹名初 王磊 孙春芳 徐峰 CHENG Fengli;YIN Mingchu;WANG Lei;SUN Chunfang;XU Feng(Wuhan Zhongyuan Communication Co.,Ltd.,Wuhan 430205,China)

机构地区：[1]武汉中元通信股份有限公司,湖北武汉430205

出　　处：《无线电工程》2025年第2期385-392,共8页Radio Engineering

摘　　要：针对传统可重构波束系统波束少的问题,提出了一种改进型可重构多波束天线系统方案,能够提升传统系统的波束数约一倍。天线系统由可重构网络、波束形成器和天线阵列组成。波束形成器基于传统巴特勒矩阵改进而成,通过引入移相器实现多端输入从而增加输出相位差。为匹配波束形成器,基于威尔金森功分器和PIN管设计了可重构网络,天线阵为多端口微带圆极化阵列天线。设计了一款工作于X频段的四阶可重构多波束天线系统。仿真与测试结果表明,设计的天线系统能够在工作频段内实现空域±40°的七波束覆盖。An improved reconfigurable multi-beam antenna system is proposed to address the problem of insufficient beams in traditional reconfigurable beamforming systems,which can increase the number of beams by about 1 time.The antenna system consists of a reconfigurable network,a beamformer,and an antenna array.The beamformer is improved based on the traditional Butler matrix by introducing phase shifters to achieve multi-port input and increase the output phase difference.To match the beamformer,a reconfigurable network is designed based on a Wilkinson power divider and PIN tubes,and the antenna array is designed as a multi-port microstrip circular polarization array antenna.Based on the principles above,a fourth-order reconfigurable multi-beam antenna system operating in the X-band is designed.Simulation and test results show that the antenna system can achieve seven-beam coverage of±40°in the spatial domain within the operating frequency band.

关 键 词：多波束 可重构 功分网络 阵列天线 巴特勒矩阵 

分 类 号：TN82[电子电信—信息与通信工程]