如題
Small Loop可以等效為磁偶極
相對於電偶極 人體對磁偶極特性的影響較小
因此 Loop較適合作為穿戴式裝置的天線
參考來源: 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."
那麼 此敘述對於共振為一波長的Loop是否也適用呢?
當共振為一波長 電流會轉向 最後電流形式會接近folded dipole
上述網站也有一段敘述:
"The one-wavelength perimeter loop antenna behaves like a folded dipole
antenna"
因此 我自己的推測是不行 不知思路是否正確?
又 一波長的Loop和folded dipole到底是不是指同一個東西?
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※ 編輯: phoenix286 (150.116.47.230 臺灣), 06/15/2020 21:02:40
※ 編輯: phoenix286 (150.116.47.230 臺灣), 06/15/2020 21:03:20