据作者在[1]中提出的概念,本文作了进一步的研究,提供的曲线更详细。对使用方法也作了简要说明。结论是;当天线相位方向图似球面时,各种定义的近似相位中心和最优增益中心基本一致。当边缘相位偏差Φ_m>π/4时,最好是计算最优辐射中心以取代定义各异的近似相位中心。 According to the concept put forward by the author in [1], this paper makes further research to provide the curve in more detail. The use of methods also made a brief description. The conclusion is: when the phase orientation of the antenna is spherical, the definitions of the approximate phase center and the optimal gain center are basically the same. When the edge phase deviation Φ_m> π / 4, it is best to calculate the optimal center of radiation instead of defining the approximate center of the phase.