Numerical Modeling for High-Power Microwave Propagation in Soil

被引：5
|
作者：
Tang, Tao [1 ,2 ]
Wang, Bing-Zhong [1 ]
机构：
[1] Univ Elect Sci & Technol China, Inst Appl Phys, Chengdu 610054, Peoples R China
[2] Chengdu Univ Informat Technol, Elect Engn Coll, Chengdu 610225, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2014年 / 13卷
基金：
中国国家自然科学基金;
关键词：
Breakdown; finite-difference time-domain method; high-power microwave; propagation; soil resistivity; IONIZATION;
D O I：
10.1109/LAWP.2014.2348172
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A theoretical investigation is presented for the physical phenomena of high-power microwave (HPM) propagation in soil. The soil resistivity will decrease due to the breakdown process caused by strong electric field of the HPM, and this process will in turn lead to dramatic attenuation of the HPM. The soil resistivity changes with time, which can be described by time-varying partial differential equations. Combined with the Maxwell equations, a model of HPM propagation in soil has been established, and numerical simulation has been made by using the finite-difference time-domain (FDTD) method. Finally, the physical processes of the HPM propagation in soil have been revealed by the numerical results.
引用
收藏
页码：1660 / 1662
页数：3
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