Low-Frequency Magnetic Shielding of a Cavity Formed by Two Imperfectly Conducting Sheets: Effect of Sheet-to-Sheet Distance and Comparison with the Single-Sheet Configuration

被引:0
作者
Pang, Fubin [1 ]
Chen, Shi [1 ]
Ji, Jianfei [1 ]
Jing, Yiyi [2 ]
Liu, Sijia [2 ]
Jiao, Chongqing [2 ]
机构
[1] State Grid Jiangsu Elect Power Co Ltd, Res Inst, Nanjing 211103, Peoples R China
[2] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewable, Beijing 102206, Peoples R China
来源
PROGRESS IN ELECTROMAGNETICS RESEARCH M | 2023年 / 121卷
关键词
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
standard measurement methods such as NSA 94-106, the low-frequency magnetic shielding effectiveness of a shielding enclosure is tested using the near field of loop antenna. Under this near-field configuration, there is no analytical or closed-form solution for volumetric shielding like box/cavity except for planar shielding like a sheet of infinite extension. Exploring the correlation between volumetric shielding and planar shielding can provide simple prediction methods for volumetric shielding based on planar shielding. As a taste to this end, this article explores the difference between the shielding effectiveness of a double-sheet cavity and a single sheet under the NSA 94-106 standard. We derived the exact solution in integral form for electromagnetic fields inside the cavity and calculated the curves of shielding effectiveness on the frequency with different sheet material, thickness, and sheetto-sheet distance. The results show that when the distance from the receiving antenna to the back sheet is greater than the diameter of the loop antenna, the results of a double-sheet cavity tend to be consistent with a single-sheet configuration. When the distance is less than the diameter, the difference between the two depends on material type and sheet thickness.
引用
收藏
页码:13 / 26
页数:14
相关论文
共 23 条
  • [1] Homogenization of Composite Panels From a Near-Field Magnetic Shielding Effectiveness Measurement
    Andrieu, Guillaume
    Panh, Johan
    Reineix, Alain
    Pelissou, Patrice
    Girard, Christophe
    Romeuf, Xavier
    Schmitt, Dominique
    [J]. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2012, 54 (03) : 700 - 703
  • [2] [Anonymous], 2007, 2992006 IEEE
  • [3] Araneo R., 2023, Electromagnetic Shielding: Theory and Applications, V2nd
  • [4] Magnetic Field Diffusion in Medium-Walled Conductors
    Collier, Landon
    Buntin, Tyler
    Dickens, James
    Mankowski, John
    Walter, John
    Neuber, Andreas
    [J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2019, 47 (01) : 1024 - 1031
  • [5] comsol, Comsol software
  • [6] Mitigation Solutions for the Magnetic Field Produced by MFDC Spot Welding Guns
    Giaccone, Luca
    Cirimele, Vincenzo
    Canova, Aldo
    [J]. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2020, 62 (01) : 83 - 92
  • [7] Low-frequency Magnetic Shielding of Planar Shields: A Unified Wave Impedance Formula for the Transmission Line Analogy
    Jiao, Chongqing
    Ning, Feng
    Yang, Xiaochen
    Qin, Dingyu
    Guo, Anqi
    Yang, Yong
    Wang, Jialong
    [J]. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2021, 63 (04) : 1046 - 1057
  • [8] Navigating the Selection of Magnetic Resonance Imaging Shielding Systems
    Kellogg, Joel
    [J]. IEEE LETTERS ON ELECTROMAGNETIC COMPATIBILITY PRACTICE AND APPLICATIONS, 2021, 3 (01): : 43 - 46
  • [9] DIFFUSIVE ELECTROMAGNETIC PENETRATION INTO METALLIC ENCLOSURES
    LEE, KSH
    BEDROSIAN, G
    [J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1979, 27 (02) : 194 - 198
  • [10] Low Leakage Electromagnetic Field Level and High Efficiency Using a Novel Hybrid Loop-Array Design for Wireless High Power Transfer System
    Lee, Seongsoo
    Kim, Dong-Hyun
    Cho, Yeonje
    Kim, Hongseok
    Song, Chiuk
    Jeong, Seungtaek
    Song, Jinwook
    Park, Gyeyoung
    Hong, Seokwoo
    Park, Junyong
    Cho, Kyungjun
    Lee, Hyunsuk
    Seo, Chulhun
    Ahn, Seungyoung
    Kim, Joungho
    [J]. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2019, 66 (06) : 4356 - 4367