作者phoenix286 (团子大家族)
看板comm_and_RF
标题[问题] "Loop适合穿戴式"是否只适用於small loop
时间Mon Jun 15 21:00:07 2020
如题
Small Loop可以等效为磁偶极
相对於电偶极 人体对磁偶极特性的影响较小
因此 Loop较适合作为穿戴式装置的天线
参考来源:
http://www.antenna-theory.com/antennas/smallLoop.php
"The human body affects dipole antennas particularly strongly. This is because
in the near field (very close to the antenna), the Electric Fields are
particularly strong. The interesting thing though, is the body isn't really
magnetic. Hence, the magnetic fields don't really see the body as much, and
hence aren't affected like the electric fields are."
那麽 此叙述对於共振为一波长的Loop是否也适用呢?
当共振为一波长 电流会转向 最後电流形式会接近folded dipole
上述网站也有一段叙述:
"The one-wavelength perimeter loop antenna behaves like a folded dipole
antenna"
因此 我自己的推测是不行 不知思路是否正确?
又 一波长的Loop和folded dipole到底是不是指同一个东西?
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※ 编辑: phoenix286 (150.116.47.230 台湾), 06/15/2020 21:02:40
※ 编辑: phoenix286 (150.116.47.230 台湾), 06/15/2020 21:03:20