【作者】 李佳维； 肖培； 贺佳港； 陈攀； 冯杨； 陈鑫；

【Author】 Jiawei Li;Pei Xiao;Jiagang He;Pan Chen;Yang Feng;Xin Chen;College of Electrical and Information Engineering, Hunan University;School of Mechano-Electronic Engineering, Xidian University;

【机构】 湖南大学电气与信息工程学院； 西安电子科技大学机电工程学院；

【摘要】 本文针对蜂窝波导机箱的屏蔽效能进行了电磁仿真计算,研究了蜂窝波导结构参数对机箱屏蔽效能的影响规律,提出了针对性的电磁防护措施。在0.1GHz～1GHz的频率范围内,通过改变蜂窝波导管结构的深度、厚度和单个孔洞面积等参数,得到了机箱屏蔽效能随蜂窝波导结构参数的变化规律,并对比分析了圆形波导机箱和蜂窝波导机箱屏蔽效能的差异。仿真结果表明想要在散热的同时保持良好的机箱屏蔽效能,可以适当增加蜂窝波导管的深度和厚度,或者减小单个孔洞面积,都可以较为显著地提升机箱的屏蔽效能。更多还原

【Abstract】 In this paper, the electromagnetic simulation calculation is carried out for the shielding efficiency of the honeycomb waveguide case. Proposed the targeted electromagnetic protection measures. Studied the influence of the structure parameters of the honeycomb waveguide on the shielding effectiveness of the case. In the frequency range of 0.1 GHz ～ 1 GHz, by changing the depth, thickness and single hole area of the honeycomb waveguide structure, obtained the variation of shielding effectiveness with the structure parameters of honeycomb waveguide. And also analyzed the difference of shielding effectiveness between circular waveguide case and honeycomb waveguide case. The simulation results show that if we want to keep good shielding effectiveness of the chassis while heat dissipation, we can increase the depth and thickness of the honeycomb duct appropriately, or reduce the area of a single hole, which can significantly improve the shielding effectiveness of the chassis.更多还原