An analysis of the antenna and scattering theory is an important part in the electromagnetic problems, which describes the energy transformation from a closed circuit system to an open space system.

电磁问题中有很大一类是研究天线和散射理论，即由封闭电路系统向空间开放系统的能量转换。

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In order to achieve the communication between the ship board antenna and the synchronous communication satellite, a method by the digital guiding closed loop and level open loop tracker is presented.

为了实现船载天线与同步通讯卫星的通讯，根据坐标变换原理和实际使用要求，提出了数引闭环、电平开环的跟踪方法。

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There exist two regions in open guiding wave structures, bound region and radiation region, and the radiation region is divided into antenna region and reactive region.

开导波结构中存在束缚区与辐射区，而辐射区又可划分成天线区和截止区。

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