A Capacitive Intrabody Communication Channel from 100 kHz to 100 MHz
A Capacitive Intrabody Communication Channel from 100 kHz to 100 MHz
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DOI：
10.1109/tim.2012.2205491
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发表时间：
2012-12-01
影响因子：
5.6
通讯作者：
Cifrek, Mario
中科院分区：
文献类型：
--
作者：
Lucev, Zeljka;Krois, Igor;Cifrek, Mario
体内通信（IBC）利用人体作为信号传输介质。在电容耦合IBC方法中，信号通过本体传输，信号返回路径通过环境闭合。接收到的信号电平受发射器相对于接收器的方向、连接到机身的接地电极的数量、接收器接地面的大小以及周围环境的影响。在本文中，我们给出了在100 kHz到100 MHz频率范围内的电容式IBC信道的特性，该特性是用网络分析仪和一对平衡器获得的。为了更好地了解在感兴趣的频率范围内的传输路径，我们使用不同的电极布置、测试人员、环境和身体位置和运动来分析体内通道的传输特性。传输增益随频率增加为20db /dec，并取决于发射器到接收器的距离和电极布置。对于适当的IBC配置，环境、测试人员、身体位置和运动的变化对传输增益的影响小于2db。
Intrabody communication (IBC) uses the human body as a signal transmission medium. In the capacitive coupling IBC approach, the signal is transmitted through the body, and the signal return path is closed through the environment. The received signal level is affected by the orientation of the transmitter with respect to the receiver, the number of ground electrodes connected to the body, the size of the receiver ground plane, and the surrounding environment. In this paper, we present a characterization of the capacitive IBC channel in the frequency range from 100 kHz to 100 MHz, obtained using a network analyzer and a pair of baluns. In order to better understand the transmission path in the frequency range of interest, we analyze the intrabody channel transmission characteristics using different electrode arrangements, test persons, environments, and body positions and movements. The transmission gain increases with frequency for 20 dB/dec and depends on the transmitter to the receiver distance, and the electrode arrangements. For a proper IBC configuration, the variations of the environment, test persons, body positions, and movements affect the transmission gain less than 2 dB.