中文摘要：

为了满足天线阵波束赋形对各单元天线输入功率不等分配的要求，基于Wilkinson功率分配器设计理论，详细推导并给出了任意功分比情况下隔离电阻的计算公式，补充了目前参考资料中对于直接多路输出功分器的设计指导。通过引入二分之一波长微带传输线，提出了一种微带结构的新型不等分功率分配器的设计方法。基于此方法，实现了一款应用于海事卫星通信天线阵馈电网络的功分比为1：2：1的三路不等分功分器。仿真和实测结果表明，功分器在工作频带范围内具有良好的性能指标。

英文摘要：

In order to meet the requirements of input power unequal distribution to each antenna element in antenna array beam-forming, the formula of isolation resistor at any power dividing ratio is derived based on the design theory of Wilkinson power divider. The design method of a new type microstrip unequal power divider is proposed in this paper by the introduction of 1/2 A microstrip transmission line. The three-way unequal power divider with power ratio of 1：2：1 is designed, which is used in maritime satellite communication antenna array feeding network. The simulated and measured results show that the proposed power divider has a good performance within the operating frequency band.