吉林大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (06): 1554-158.

• paper • Previous Articles     Next Articles

Electromagnetic radiation suppressed research of automotive mobile preparation system based on bluetooth technology

WU Ding-chao1,GAO Yin-han2,FAN Kuan-gang3,WANG Ke1   

  1. 1.School of Communication Engineering,Jilin University,Changchun 130022|China;2.Center of Test Science,Jilin University,Changchun 130022,China;3.College of Instrumentation &|Electrical Engineering,Jilin University,Changchun 130022,China
  • Received:2009-04-25 Online:2009-11-01 Published:2009-11-01

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Abstract:

FDTD (Finite Difference Time Domain method) is used to establish mathematical model and the radiation of the automotive mobile preparation system based on Bluetooth Technology is analysed on time domain and frequency domain for the electric dipole and Gaussian pulse. Two kinds of different frequency bands (150 K-30 M and 75 M-108 M) are analysed. The method and its circuits of ground drift and crosstalk suppression are designed. The simulation images have shown that it greatly suppressed the radiation of the mobile preparation systems. The intensity of electromagnetic radiation is reduced by an average 7.6 dB, thus it enhanced the electromagnetic compatibility of the mobile preparation system, also verified the effectiveness of two designs.

Key words: technology of instrument and meter, electronagnetic radiation, crosstalk, bluetooth technology, mobile preparation system

CLC Number: 

  • TN836
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