试题与答案

制作工作频率为f（单位：兆赫兹）的半波长偶极天线。每个振子的大致长度（单位：米）为（

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题型：单项选择题

题目：

制作工作频率为f（单位：兆赫兹）的半波长偶极天线。每个振子的大致长度（单位：米）为（）

A.48.8/f

B.71.3/f

C.142.6/f

D.150/f

答案：

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参考答案：对

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