论文标题
产生电磁波的新方法
New Way of Generating Electromagnetic Waves
论文作者
论文摘要
本文提出了一种新方法，用于在挑战性环境（例如水下和地下）中产生低频电磁波进行导航和通信。主要思想是使用永久磁铁和磁性材料之间的相互作用将磁能存储在两个不同的空间中。在永久磁铁周围的介质不情愿的磁性不情愿，以改变磁通路径。磁性材料作为关键现象的非线性特性用于有效调制。结果，通过永久磁铁通量的调制产生了时间变化的场。这种非共鸣的时间变化表征意味着发射器不与天线的基本限制结合，并且可以传输更高的数据速率。原型发射器作为概念的证明是根据提出的想法设计和测试的。与旋转磁铁相比，原型发射器可以调节$ 50 \％的永久磁铁存储能量，并以较低的功耗。
This paper presents a new method for generating low-frequency electromagnetic waves for navigation and communication in challenging environments, such as underwater and underground. The main idea is to store magnetic energy in two different spaces using the interaction between a permanent magnet and a magnetic material. The magnetic reluctance of the medium around the permanent magnet is modulated to change the magnetic flux path. The nonlinear properties of magnetic material as a critical phenomenon are used for effective modulation. As a result, a time-variant field is generated by the modulation of the permanent magnet flux. This non-resonant time-variant characterization means that the transmitter is not bound to the fundamental limits of the antennas and can transmit higher data rates. A prototype transmitter as a prove-of-concept is designed and tested based on the proposed idea. Compared to the rotating magnet, the prototyped transmitter can modulate $50\%$ of the stored energy of the permanent magnet with much lower power consumption.
