... directivity index 指向性指数指向性指数 directivity of antenna 天线方向性系数 directivity 方向性 ...
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天线方向性系数和增益 directivity and gain of antenna
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.
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).
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