支持空时分复用无线Mesh网络的微带阵列天线

支持空时分复用的无线Mesh网络采用多方向天线阵列技术,使用多个高增益定向天线进行多方向覆盖,具备通信距离远和天线自动扫描与对准的特性,便于快速部署。但现有的多方向天线阵列的设计从扩大通信距离的角度考虑,侧重于提高天线增益,使其垂直主瓣宽度仅为6°,这对于通信距离较近并且节点之间高程差较大的情况来说,覆盖性能不够理想。对多方向天线阵列的组成单元——微带阵列天线进行了优化设计,提出了一种支持空时分复用无线Mesh网络的微带阵列天线设计,其垂直主瓣宽度可达30°,并对设计的微带阵列天线进行了性能仿真和实际测试。

Design on Microstrip Array Antenna Based on Space-time Multiplexing Wireless Mesh Network

The multi-sector antenna array is used in space-time multiplexing wireless mesh network to improve performance ,which is made up of multiple high-gain directional antennas to realize omnidirectional coverage. It features long communication distance and antenna auto switching, which is convenient to deploy rapidly. But the existing design emphasizes particularly on antenna array and the vertical beamwidth is only 6~ ,which reduces the coverage performance for some circumstances of short distance and large height differ- ence.The microstrip array antenna is optimized and the vertical beamwidth increased to 30~. The simulation and test results show that the optimized microstrip array antenna can largely improve the vertical coverage space of wireless mesh network nodes.