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TE和TM极化模式下极低频电磁波在海水中的衰减特性研究
Study on attenuation characteristics of extremely frequency electromagnetic waves in seawater in TE and TM polarization modes
- DOI:
- 作者:
- 屈文璋, 许诚, 孙溥, 李丁山, 闫建峰
QU Wen-zhang, XU Cheng, SUN Pu, LI Ding-shan, YAN Jian-feng
- 作者单位:
- 中国舰船研究院，北京 100192
China Ship Research and Development Academy, Beijing 100192, China
- 关键词:
- 极低频电磁波;极化模式;有限元
extremely low frequency (ELF) electromagnetic wave;polarization mode;finite element
- 摘要:
- 本文从极低频电磁波的TE和TM模式传播公式出发，利用有限元数值算法，通过构建海水及海底介质模型，研究海水中极低频的衰减特性，最终认为TE和TM模式下极低频电磁波衰减曲线基本一致，频率为0.5 Hz时，磁场衰减速度明显快于电场。
In this paper, starting from the TE and TM mode propagation formulas of extremely low frequency electromagnetic waves, by using finite element numerical algorithm, the attenuation characteristics of extremely low frequencies in seawater are studied by constructing seawater and submarine medium models. Finally, it is considered that the attenuation curves of extremely low frequency electromagnetic waves in TE and TM modes are basically the same. When the frequency is 0.5 Hz, the attenuation speed of the magnetic field is significantly faster than that of the electric field.
2023,45(4): 139-142 收稿日期：2022-06-27
DOI：10.3404/j.issn.1672-7649.2023.04.027
分类号：O441.4
作者简介：屈文璋(1995-),男,硕士,工程师,研究方向为极低频电磁理论及应用
