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

fYear

2013

fDate

25-28 Aug. 2013

Firstpage

349

Lastpage

352

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2013 IEEE International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICMTCE.2013.6812489

Filename

6812489