采用遗传算法来优化单脉冲阵列天线的和、差方向图和方向性系数。
The sum and difference patterns as well as the directivity of the monopulse antenna arrays are optimized based on genetic algorithms (GA).
其结果包括阵列单元的输入阻抗、空间波辐射效率、方向性系数和辐射方向图等。
The results for element input impedance, radiation efficiency of space wave, directivity and radiation pattern are presented.
本文对均匀直线阵列天线在相控扫描过程中的主瓣宽度和方向性系数进行了估算。
In this paper, the main valve width and directive gain for uniform linear array of antennas in phased scanning are estimated.
结果表明随着试样宽度的减小，抗拉强度、厚向异性系数减小，板平面方向性系数增大；
The results show a decrease of tensile strength and mean vertical anisotropy and an increase of plane anisotropy with a decreasing of the width of specimen.
计算了其平均功率反射系数、方向性系数和功率谱与等离子体边缘密度和主波导相位差等参数的关系。
The average power reflection coefficient, directivity, power spectrum are obtained for different edge plasma densities and for different phasings between main waveguides.
本文在矩量法计算曲面偶极子特性数据的基础上对方向性系数进行了优化，得到了曲面偶极子方向性系数的最大值。
Based on the calculation of the characteristic parameters of curved surface dipoles by moment method, the directivities are optimized, the maximum directivities of curved surface dipoles are obtained.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
本文利用天线阵基本原理近似分析了曲线振子的方向性系数，得到了方向性系数随曲线振子长度的变化关系，为曲线振子天线的进一步研究及设计提供参考。
The directivity of curvilinear dipole is analysed by the basic principle of antenna array, the relationship between the directivity and the length of curvilinear dipoles is obtained.
本文利用天线阵基本原理近似分析了曲线振子的方向性系数，得到了方向性系数随曲线振子长度的变化关系，为曲线振子天线的进一步研究及设计提供参考。
The directivity of curvilinear dipole is analysed by the basic principle of antenna array, the relationship between the directivity and the length of curvilinear dipoles is obtained.
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