FDTD法在单极天线特性分析中的应用-雨痕轻轻-我的搜狐 关键词： 时域有限差分法,近场分布,单极天线[gap=721]Keyword:finite difference time domain,distribution in near field,monopole antenna.
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采用数值积分方法分析了圆口径天线非轴向近场分布特性。
The near-axis field distribution of circular aperture antennas is obtained by numeric integration method.
采用三维时间域有限差分（FDTD）方法研究了扫描近场光学显微镜中光纤微探针的近场分布特性。
The near field distribution of uncoated and metal coated fiber optic probes were characterized by the method of three dimensional finite difference time domain (FDTD).
进一步推导了焦斑质心位置对光束近场强度分布和相位斜率分布的依赖关系式，并对该式清晰的物理意义进行了阐述。
The centroid position of the focal spot directly depending on intensity distribution and phase slope distribution of near field is derived and its physical meaning is described.
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