Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Analysis of Electro-magnetic Waves for the $815\~865MHz$ and $900\~950MHz$ Bands in a Cabin of Automobile

승용차 실내의 $815\~865MHZ$ 및 $900\~950MHz$대역의 전자파 분석

  • Choe Gwangje (Department of Electrical Engineering, Halla University) ;
  • Jho Shigie (Department of Mechanical Engineering, Halla University) ;
  • Jeung Weolrark (Department of Mechanical Engineering, Halla University) ;
  • Jang Sungkuk (Department of Mechanical Engineering, Halla University) ;
  • Kang Shinhan (Department of Mechanical Engineering, Halla University) ;
  • Han Sangwhi (Mando Corporation Central R&D Center)
  • 최광제 (한라대학교 전기전자공학부) ;
  • 조시기 (한라대학교 기계자동차공학부) ;
  • 정원락 (한라대학교 기계자동차공학부) ;
  • 장성국 (한라대학교 기계자동차공학부) ;
  • 강신한 (한라대학교 기계자동차공학부) ;
  • 한상휘 (만도 중앙연구소)
  • Published : 2006.01.01
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Abstract

In this paper, we have measured the power of the electro-magnetic waves in the cabin of automobiles with automatic transmission or manual transmission. Measured frequency ranges are $815\~865MHz\;and\;900\~950MHz$. Experimental studies are conducted by measuring the radiated power of the frequency spectrum for above frequency bands. The $\lambda/2$ dipoles used for measurement are fabricated to comply with the COMMISSION DIRECTIVE 95/54/EC. Experimental results confirm that the level of radiated power in the cabin of automobile with automatic transmission is higher than that with manual transmission. The measured values are less than -85dBm for the manual transmission vehicles, but more than -79dBm for the automatic transmission vehicles.

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References

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