论文部分内容阅读
本文根据Friis等人的理论并对其结果作简单变换之后,导出了对流层不规则层不相干反射传播时与天线垂直面和水平面波束有关的中值接收功率,然后叙述了:(1)垂直面波束窄于水平面波束的天线相对于有同增益的等波束天线之增益G≤n(=(?)_h/(?)_v),(2)垂直面波束宽于水平面波束的天线相对于有同增益的等波束天线之增益G≤1/n,(3)垂直面波束窄于水平面波束的天线相对于有同增益的垂直面波束宽于水平面波束的天线之增益G≤n~2。还给出了在360MHz频率上的实验结果,与理论值比较,达到了十分良好地一致。
Based on the theory of Friis et al. And the simple transformation of the results, we derive the median received power related to the vertical and horizontal beam of the antenna when the tropospheric irregular layer propagates incoherently. Then we describe the following: (1) G≤n (= (?) _h / (?) _v), the antenna whose beam width is narrower than the horizontal plane beam is equal to the gain of the equal beam antenna with equal gain Gain G = 1 / n, and (3) the gain of the antenna whose vertical plane beam is narrower than the horizontal plane beam relative to the antenna whose vertical plane beam with the same gain is wider than that of the horizontal plane beam. Also given in the 360MHz frequency experimental results, compared with the theoretical value, reached a very good agreement.