Passive intermodulation interference optimized antenna configuration

A base station system may include at least one base station radio; at least one antenna, the at least one antenna comprising at least a first antenna, the at least first antenna comprising a linear array of antenna elements arranged in a vertical plane; and at least one antenna distribution network for distributing a radio frequency (RF) signal as a component RF signal across the linear array of antenna elements of the at least first antenna to form at least one beam in an elevation plane. In one example, at least one antenna feed network applies amplitude and phase weights to a component RF signal, where the amplitude and phase weights are selected to minimize RF coupling between at least a first antenna and a passive intermodulation source in a near field of at least the first antenna. 一种基站系统可以包括：至少一个基站无线电；至少一个天线，所述至少一个天线包括至少第一天线，所述至少第一天线包括布置在垂直平面中的线性的天线元件阵列；以及至少一个天线分布网络，用于将射频(RF)信号作为分量RF信号跨至少第一天线的线性的天线元件阵列分布，以在仰角平面中形成至少一个波束。在一个示例中，至少一个天线馈电网络将幅度和相位权重应用于分量RF信号，其中选择幅度和相位权重以最小化至少第一天线和至少第一天线的近场中的无源互调源之间的RF耦合。