当前的阵列天线共用设计集中于2个或多个雷达应用，而在稀疏阵列技术基础上，交错配置雷达阵元和通信阵元，就可以实现雷达和通信的一体化，显著提高天线的利用效率。首先在循环差集理论的基础上构建了雷达稀疏阵列，分析了稀疏阵列的雷达天线方向图，在未占用阵元中对通信阵元进行1次配置；其次根据信道秩损效应，对阵元进行2次配置，提高通信的信道增益；最后仿真分析了共用天线的雷达和通信的技术指标，证明所提方法的有效性。

Array antenna sharing design can significantly improve the utilization efficiency of the antenna.The current array antenna design focuses on two or more radar array.In addition,if radar array and communication array elements are in interleaved arrangement based on sparse array technology,the integration of radar and communication will be implemented.Firstly,based on cyclic difference sets theory,sparse array radar is established,and the sparse array radar antenna pattern is analyzed.Meanwhile,the untaken array elements are remained for communication.Secondly,a further array arrangement is executed to improve communication channel gain based on the channel rank deficient effect.Finally,technical indicators of the radar and communications integration antenna are simulated and analyzed,which verifies the effectiveness of the proposed method.