Effects of Aperture Amount and Offset on Couplings of StrongElectromagnetic Pulse
Aperture coupling is a main coupling mode through which strong electromagnetic pulse can disturb and even damage electronic equipments. The amount, offset and mixed shape of aperture arrays can affect the coupling effect, which is analyzed using finite-difference time-domain (FDTD) method. The field strength coupled increases with the decrease of the slot amount when the total area of aperture is unchanged. The shielding effectiveness is the smallest when the electromagnetic pulse reaches the resonant frequency, which is only affected by the actual structure size of the shielding cavity. Comparing to two direction offset, the single achieved much larger field strength, which is symmetrical about offset center. The coupled field strength is the smallest when the shape of aperture arrays contains round and rectangular.
Hole array Strong electromagnetic pulse Shielding effectiveness simulation
Zhu Xinping Cao Bing Liu Chenglong
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China
国际会议
合肥
英文
1387-1390
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）