从介绍射频仿真系统天线阵的工作原理出发,分析研究了几种常用的天线阵设计方案,对天线阵设计中的关键技术,如提高微波辐射功率的途径和宽频带设计技术进行了详细探讨,尤其分析了宽带双极化脊椎天线主瓣在频率高端往往会出现下凹的现象及在射频仿真系统天线阵设计和使用中应避开这个下凹点所采取的措施. Starting from introducing the working principle of the antenna array of the RF simulation system, several commonly used antenna array design schemes are analyzed and studied. The key technologies in the antenna array design, such as the way to improve the microwave power and the design technology of the broadband band are discussed in detail. In particular, it analyzes the phenomenon that the main lobe of broadband dual-polarized spine antenna tends to sink at the high frequency and the measures to be taken to avoid this indentation during the design and use of the antenna array of the radio frequency simulation system.