The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design and Fabrication of K-band Attenuation Standard

K-대역 감소량 표준기의 설계 및 제작

  • Lee Joo-Gwang (Electromagenetic Metrology Group, Korea Research Institute of Standards and Science) ;
  • Kim Jeong-Hwan (Electromagenetic Metrology Group, Korea Research Institute of Standards and Science) ;
  • Kang Jin-Seob (Electromagenetic Metrology Group, Korea Research Institute of Standards and Science) ;
  • Kang Tae-Weon (Electromagenetic Metrology Group, Korea Research Institute of Standards and Science)
  • 이주광 (한국표준과학연구원 기반표준부 전자기그룹) ;
  • 김정환 (한국표준과학연구원 기반표준부 전자기그룹) ;
  • 강진섭 (한국표준과학연구원 기반표준부 전자기그룹) ;
  • 강태원 (한국표준과학연구원 기반표준부 전자기그룹)
  • Published : 2006.04.01
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Abstract

In this paper, measurement scheme and uncertainty estimation of the K-band attenuation standard fitted with 3.5 mm coaxial connectors are described. The standard comprises a build-up chain of four steps of power ratio mea-surement and operates in the frequency range of 18 GHz to 26.5 GHz. The nominal attenuation of each step is around 20 dB and total dynamic range is 80 dB. The expanded uncertainty of the overall system is 0.01 dB at the confidence level of approximately 95%.

K-대역에서 동작하는 3.5 mm 동축형 감쇠량 표준기를 개발하고 그 측정 불확도를 평가하였다. 전력비 전달방식의 4개의 모듈로 구성된 이 표준기는 18 GHz부터 26.5 GHz까지의 광대역에서 동작하며 각 모듈은 약 20 dB의 감쇠량을 가진다. 측정 가능한 최대 감쇠량은 80 dB이고 이때의 확장 불확도는 약 95% 신뢰수준에서 0.01 dB이다.

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