Rotationally symmetric arrays of apertures on conducting spherical surfaces
Rotationally symmetric arrays of apertures on conducting spherical surfaces
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导电球面上的旋转对称孔径阵列
DOI：
10.1109/8.163423
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
P. Bondyopadhyay
中科院分区：
文献类型：
--
作者：
P. Bondyopadhyay
分析了导电球面上圆波导馈电孔径的旋转对称阵列。用球面传输线模式表示外部电磁场，使得阵列分析可以看作是一个球面波导结不连续问题。一般来说，这些孔径携带双偏振圆波导TE/sub / 11模式。两个独立的公式-单位细胞法和本征激励法，其中考虑到旋转对称性-被开发，并对彼此进行了数值检查的计算精度。这两个公式解析地联系为离散傅立叶级数对。可以看出，当激振偏振方向垂直于阵列平面时，沿阵列相互耦合的衰减速度要快于激振偏振方向平行于阵列平面时。该分析已应用于圆顶透镜相控阵雷达天线的性能分析。>
Rotationally symmetric arrays of circular waveguide fed apertures on conducting spherical surfaces have been analyzed. Representation of the outside electromagnetic fields in terms of spherical transmission line modes permits the array analysis to be viewed as a spherical waveguide junction discontinuity problem. The apertures, in general, carry dual polarized circular waveguide TE/sub 11/ modes. Two independent formulations-the unit cell method and the eigen excitation method, which take rotational symmetry into account-are developed and are checked against each other numerically for computational accuracy. These two formulations are analytically linked as discrete Fourier series pairs. It is seen that mutual coupling along the array decays more rapidly when the polarization of excitation is perpendicular to the array plane than when it is parallel to it. This analysis has been applied in the performance analysis of the dome lens phased array radar antenna. >