A Portable Very Low Frequency (VLF) Communication System Based on Acoustically Actuated Magnetoelectric Antennas
A Portable Very Low Frequency (VLF) Communication System Based on Acoustically Actuated Magnetoelectric Antennas
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DOI：
10.1109/lawp.2020.2968604
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发表时间：
2020-03-01
影响因子：
4.2
通讯作者：
Sun, Nian X.
中科院分区：
文献类型：
--
作者：
Dong, Cunzheng;He, Yifan;Sun, Nian X.
提出了一种使用一对磁电（ME）天线的新型甚低频（VLF）通信系统。ME天线是应变介导的声谐振器，在VLF频带中以其机电谐振工作。测量的近场辐射方向图显示ME天线等效于偶极天线。电磁辐射发射器辐射的磁场已被预测沿着从1 mm到100 km的距离。实测磁场分布与预测结果吻合较好，最大通信距离达到120 m。在80 V驱动电压下，微电子发射机的功耗为400 mW。此外，直接天线调制（DAM）也已成功地证明在ME天线。
A novel very low frequency (VLF) communication system using one pair of magnetoelectric (ME) antennas has been proposed. The ME antennas are strain-mediated acoustic resonators operating at their electromechanical resonance in the VLF band. The measured near-field radiation pattern reveals ME antennas are equivalent to dipole antennas. The magnetic field radiated by the ME transmitter has been predicted along with distance ranging from 1 mm to 100 km. The measured magnetic field distribution coincided well with the prediction, and the maximum communication distance of 120 m has been achieved. With 80 V driving voltage, the power consumption of the ME transmitter has been measured as 400 mW. Furthermore, the direct antenna modulation (DAM) has also been successfully demonstrated on the ME antennas.