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通信卫星要采用赋形波束天线,必须研制开发非常复杂的波束形成网络(BFN),以便在馈电单元上产生必需的幅度和相位分布。为了满足苛刻的功率分配要求,同时避免对BFN做任何调谐或修改,做到一次成功,准确有效的CAD工具是必不可少的。我们开发了一个软件包,用于分析BFN中常用的波导与矩形同轴线微波部件。该软件包中各程序均经过实验给证。本文将详细描述该软件包所采用的分析方法和具有的功能,并给出一些典型部件的计算和实测结果。
Communication beacons require the use of shaped beam antennas and must develop and develop very sophisticated beamforming networks (BFNs) to produce the necessary amplitude and phase distribution on the feed elements. In order to meet the demanding power distribution requirements while avoiding any tuning or modification of the BFN, a successful, accurate and effective CAD tool is essential. We have developed a software package for analyzing waveguide and rectangular coaxial microwave components commonly used in BFN. All programs in this package have been verified by experiments. This article will describe in detail the analysis methods and functions of the software package, and give the calculation and the results of some typical components.