cert_exam:tech_radio_op_1:b:201501:a-4
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微小ダイポールアンテナの実効面積
$ S_s = \frac{3 \lambda^2 }{8 \pi}$
$S_s: 実効面積［m^2]$ , $ \lambda $: 波長［m]
cert_exam/tech_radio_op_1/b/201501/a-4.1575344094.txt.gz · Last modified: by fu