多波束天线在卫星通信中主要用于星体上,由于偏焦的各个馈源形成各个单波束,可由馈电网络面电流组合起来,形成一个赋形波束覆盖整个照射区。必要时也可单独使用各个单波束,这样一副天线就有多种工作方式。实现多波束有两种途径,一是通过多波束合成网络来实现一个赋形波束或多个单波束;另一个方法是控制馈源与焦点(O′)的相 Multi-beam antenna in satellite communications is mainly used for the stars, due to the partial focus of each feed to form a single beam, the current from the feeding network can be combined to form a shaped beam to cover the entire irradiation area. If necessary, each single beam can also be used alone, so there is a variety of antenna work. There are two ways to achieve multi-beam, one is through the multi-beam synthesis network to achieve a shaped beam or multiple single-beam; another method is to control the feed and focus (O ’) of the phase