Title :
Study on coupling fields of cavity with slot by LOD-FDTD numerical method
Author :
Cai Junfeng ; Yi Jianzheng ; Xuan Zhaolong ; Fu Xiaozhong
Author_Institution :
Ordnance Eng. Coll., Shijiazhuang, China
Abstract :
LOD-FDTD numerical method was introduced and the computation model of rectangular cavity with slot was established and the coupling field of the electromagnetic pulse into cavity with slot on it was studied by LOD-FDTD numerical method. The study showed that cavity and slot resonance field became a secondary radioactive source successively that transmitted electromagnetic energy to outer space in the process of electromagnetic pulse couple with cavity and slot. Electromagnetic pulse high frequency component was relatively easy to coupling into the cavity and attenuated quickly inside the cavity. The results of numerical analysis in this paper could provide reference for equipment electromagnetic shielding design and application.
Keywords :
electromagnetic coupling; electromagnetic pulse; electromagnetic shielding; finite difference time-domain analysis; LOD-FDTD numerical method; cavity coupling fields; electromagnetic pulse high frequency component; electromagnetic shielding; finite difference time-domain analysis; rectangular cavity; secondary radioactive source; slot resonance; transmitted electromagnetic energy; Cavity resonators; Couplings; EMP radiation effects; Frequency-domain analysis; Mathematical model; Resonant frequency; Time-domain analysis; Cavity with slot; Coupling fields; LOD-FDAD; Resonance;
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on
Conference_Location :
Qingdao
DOI :
10.1109/ICMTCE.2013.6812489
