Turns of coil antenna with ferrite core is the most critical parameter when designing receiving coil antennas for wireless magnetic inductive communication. According to the adjustment of turns, the self-inductance, self-resistance, and mutual inductance of the coil will change respectively. Parallel resonance is often used in receiving coils to obtain a considerable induced voltage which supplies for receiving system. In this article, we summarize the parameters of the ferrite coil antenna with its corresponding circuit model and parallel resonance circuit. Moreover, the optimized turns of receiving coil antenna with ferrite core are analyzed. Meanwhile, an experiment has been built to verify the proposed conclusion with calculations. The results show that measurement results are well-matched with calculated ones. Turns of the coil can be optimized to get larger induced voltage and the conclusion will guide for designing coils for wireless magnetic inductive communication.

中文翻译：

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无线磁感应通信接收铁氧体磁芯天线的优化线圈匝数

在设计用于无线磁感应通信的接收线圈天线时，铁氧体磁芯线圈天线的匝数是最关键的参数。根据匝数的调整，线圈的自感、自阻、互感会分别发生变化。接收线圈常采用并联谐振，以获得相当大的感应电压供给接收系统。在本文中，我们总结了铁氧体线圈天线的参数及其相应的电路模型和并联谐振电路。此外，分析了铁氧体磁芯接收线圈天线的优化圈数。同时，建立了一个实验来验证所提出的结论与计算。结果表明，测量结果与计算结果吻合良好。