The basic scattering theory of single-port antenna is illustrated in both the frequency-domain and time-domain clearly, in this paper. The polarizations of detecting antenna, detected antenna, and receiver antenna are included in the analytical course. The structural mode scattering and the antenna mode scattering are separated in the time-domain intuitively. Based on the analysis procedure above, some basic approaches of controlling antenna scattering are given.This work will serve as a good candidate for the future design of antennas with a requirement of scattering control.%本文给出单端口天线的频域和时域散射理论分析,通过时域和频域分析清晰地说明了天线散射的机理.分析过程中包含了探测天线和接收天线对被测天线散射的影响.天线的时域散射特性直观地区分了结构模式项散射场和天线模式项散射场.以该分析过程和结论为基础,讨论了天线散射控制的指导思想.
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