Application of Electromagnetic Shielding Technology in the Electronic System

Abstract:

With the wide application of electronic technology, electromagnetic interference has become one of the main factors to weaken electronic system performance. In communication technology and equipment, it is the development of light-duty design, low cost, high quality electronic components and electronic system that is the main object of this study. Radio frequency MEMS devices are low energy consumption, good stability. Therefore it has a strong competitiveness in the communications electronics. But EMI electromagnetic interference problem has increasingly become prominent, and based on this, this paper makes a further study on the main electromagnetic interference electromagnetic radiation of MEMS devices. In addition, this paper also establishes the mathematical model of electromagnetic radiation. Finally this paper makes an analysis and study on the shielding effect of MEMS antenna under certain magnetic materials. Through the simulation research, it is obtained that the electromagnetic effect of electronic system MEMS is good and its highest performance is more than 60 db. Whats more, shielding materials are within the range of 15 to 20 GHZ, whose shielding effects reach the maximum. The largest is close to 80 db.

• Periodical: Advanced Materials Research (Volumes 846-847)
• Pages: 791-794
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.846-847.791
• Online since: November 2013
• Authors: Guo Jun Chen*, Jiang Min Xu
• Keywords: Electromagnetic Shielding, Electronic System, Frequency Range, MEMS Devices, Radiated Interference, Shielding Effect

References

[1] Pu Xiuying, Dong Jun, Lv Min. Electromagnetic interference forecast analysis and restrained research in the airborne electronic equipment. Electrical engineering in ships, 2011(1): 179-181.

[2] Zhao Gang. The development trend of weapon equipment electromagnetic compatibility technology in information age [J]. Electrical engineering in ships, 2010(1): 20-36.

[3] Lu Shaowen, Wang Hui, Chen Huagen. Research on new electromagnetic shielding material tin/copper conductive cloth [J]. Development and application of materials, 2011, 22(2): 44- 47.

[4] Wang Huagang. Diagnosis and treatment of communication power supply equipment's electromagnetic compatibility problems [J]. Communication power supply technology, 2011, 25 (5): 31-34.

[5] Sun Pengcai, Liu Yuanyao, Chen Qing. Research on the hierarchical forecast method of system electromagnetic compatibility [J]. Science and technology in ships, 2011, 30 (4): 89-92.

[6] Lv Xiajuan. Study on the new broadband lightweight electromagnetic shielding materials involving carbon nanotubes [D]. Shanghai: Shanghai jiaotong university, 2010: 1-11.

[7] Huang Xiaoli, Wu Gaohui. The development of lightweight electromagnetic shielding materials. China's aviation institute, 2007 academic annual meeting, 2011(8): 1-4.

[8] Wang Taosheng, Wu Dajun, Wu Cuiling etc. Electromagnetic shielding properties of nanometer graphite conductive composite coating [J]. Journal of huaqiao university, 2011, 28 (3): 278-281.