Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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A Study on Measuring Leaky Waves of Outdoor CATV Facilities in The Mobile Band

800MHz 이동통신 대역에서의 유선방송 전송설비 누설전자파 측정방법에 관한 연구

  • Park, Seong-Gyoon (School of Information and Communication Engineering, Kongju National University)
  • 박성균 (공주대학교 정보통신동학부)
  • Received : 2011.03.05
  • Published : 2011.03.31
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Abstract

Cable leakage criterion of technical regulations on CATV transmission system was reinforced considering interference against CDMA mobile communication system in 2007. The criterion is $3{\mu}V$/m(at 10m) over 824~849MHz. But generally it is difficult for us to decide if a given CATV transmission facilities conform to it or not through simple measurement methods. In this paper, the problems on measuring cable leakage is identified theoretically and the measuring model with spectrum analyzer, LNA, and antenna is proposed to settle the problems. Also, the model is proved to be useful by practically measuring outdoors and analysing the results and the process to decide to fit to the criterion or not is established.

현재 유선방송 기술기준 상에서 CDMA 이동통신시스템에 대한 간섭을 고려하여 강화된 824~849MHz대역의 누설전자파 기준이 $3{\mu}V$/m(10m 거리)인데, 이를 실제 옥외에서 일반적인 측정방법으로 측정하여 적합여부를 판정하기 어렵다. 본 논문은 이러한 문제점을 이론적으로 규명하고, 이를 해결하기 위해 스펙트럼분석기, 저잡음증폭기(LNA), 안테나를 이용한 측정모델을 제안하였다. 또한, 실제 옥외에서 실험을 통해 측정한 결과를 분석하여 그 유용성을 입증하였고, 적합 여부를 판정하는 프로세스를 수립하였다.

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References

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