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你设计的天线最优高度是多少?作者考察了若干因素,或许能帮助你拿定主意考虑天线和线性介质中的传播问题通常有两种方法:发射模式和接收模式。由互易性原理可知,两种方法的预测结果应该是相同的。为了寻求HF天线的最佳高度,我们将从接收模式考察这一问题,因为这将是非常有趣的视角。比如接收地点的场强就是直接到达电磁波和地面反射电磁波相干涉而得到的结果。两波叠加的结果就是接收地点驻波与高度的对立。这种垂直驻波有波峰也有波谷,天线位置
What is the Optimal Antenna Height for Your Design? The author examines a number of factors that may help determine the propagation problems in antennas and linear media. There are usually two ways: transmit mode and receive mode. The principle of reciprocity shows that the predictions of the two methods should be the same. In order to find the best height of the HF antenna, we will examine this issue from the reception mode, as this will be a very interesting perspective. For example, the strength of the reception site is the result of the interference between the direct arrival electromagnetic wave and the ground reflection electromagnetic wave. The result of the superposition of two waves is the opposition of standing wave and altitude at the receiving location. This vertical standing wave crest also trough, antenna location