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频率越高传的越远还是越近?

2025-03-24 03:52:47

推荐回答（3个）

回答1：

电磁波通过障碍是根据衍射原理。就是说障碍物小于波长时，电磁波容易通过。频率高得电磁波方向性好，波长小，不容易通过障碍。传播距离小。一般定向传播用。低频得电磁波波长大，容易通过山啊，建筑物啊，所以传播距离远。

回答2：

频率越高,受自然介质的影响,衰减越大,所以频率越高传的是越近

回答3：

频率越高波长短易反复折射,受气候,障碍物的影响衰减,传的近.

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