Title :
Characterization of shielding effectiveness of metallic frustum cone-like cabin with one coaxial feeding monopole antenna illuminated by a HEMP
Author :
Wang, Jian ; Zhang, Qing-Qing ; Yin, Wen-Yan
Author_Institution :
Key Lab. of Minist. of Educ. of Design & Electromagn. Compatibility, of High-Speed Electron. Syst., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
Shielding effectiveness and inner resonance of metallic frustum cone-like cabins illuminated by an intentional EMP are studied in this paper, with one coaxial feeding monopole antenna and some parallel slots on the cabin wall also considered. In our numerical simulations, hybrid FDTD method, integrated with surface mesh model, equivalent coaxial feed model, and thin wire model, are all implemented for handling such a complex three-dimensional (3-D) composite structure. Parametric studies are further carried out to show the shielding effectiveness and inner field resonance characteristics of the cabins with different geometries and the incident IEMP with different directions and polarizations.
Keywords :
antenna feeds; electromagnetic pulse; electromagnetic shielding; electromagnetic wave polarisation; finite difference time-domain analysis; monopole antennas; resonance; wires (electric); IEMP; cabin wall; coaxial feeding monopole antenna; complex 3D composite structure; equivalent coaxial feed model; hybrid FDTD method; intentional electromagnetic pulse; metallic frustum cone cabin; numerical simulation; parallel slot; polarization; resonance; shielding effectiveness; surface mesh model; thin wire model; Antennas; Cable shielding; Computational modeling; Computers; Finite difference methods; Time domain analysis; Wideband;
Conference_Titel :
Electromagnetic Compatibility (APEMC), 2012 Asia-Pacific Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-1557-0
Electronic_ISBN :
978-1-4577-1558-7
DOI :
10.1109/APEMC.2012.6237921
