Design aspects for HIRF protection of a rectangular metallic cavity using energy selective diode grids
Design aspects for HIRF protection of a rectangular metallic cavity using energy selective diode grids
复制标题
使用能量选择二极管栅极对矩形金属腔进行 HIRF 保护的设计方面
DOI：
10.1109/apemc.2016.7522736
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
C. Schuster
中科院分区：
文献类型：
--
作者：
Cheng Yang;Peiguo Liu;H. Bruns;C. Schuster
金属外壳可有效减少高强度辐射场(HIRF)环境中的电磁干扰。然而，任何孔径--例如，用于与外部的无线通信--都会降低屏蔽效果。本文研究了用于能量选择性场保护的二极管栅孔。如果设计得当，这种孔将有效地阻挡来自外部的HIRF环境，同时允许当HIRF消失时来自内部的低功率无线通信。本文研究了二极管栅极密度和保护孔数对0.5m×0.5m×0.5m矩形金属腔屏蔽的影响。通过比较入射场和接收场的最大瞬时峰值来评估屏蔽效率。不同的结果模式为实际中正确的二极管栅极设计提供了指导。
Metallic enclosures effectively reduce electromagnetic interference in high intensity radiated field (HIRF) environments. However, any aperture - e.g. for wireless communication with the outside - will degrade the shielding. In this paper, apertures covered with diode grids are investigated for energy selective field protection. If properly designed, such apertures will effectively block the HIRF environment from the outside while allowing low power wireless communication coming from the inside when HIRFs disappear. Here, both the density of the diode grids and the number of protected apertures are studied with regard to their effects on the shielding of a 0.5 m × 0.5 m × 0.5 m rectangular metallic cavity. The shielding efficiency is evaluated by comparing the maximum transient peaks of incident and received fields. The varying result patterns provide guidelines for a proper diode grid design in practice.