The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Design of the Multi-PIN Diode Waveguide Limiter with Extended Attenuation Bandwidth

확장된 신호 감쇄대역을 갖는 다중 PIN다이오드 도파관 리미터 설계

  • Received : 2018.07.16
  • Accepted : 2018.10.15
  • Published : 2018.10.31
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Abstract

This paper deals with the design and implementation of a limiter, which is a key component of the Ku-band radar system. The limiter design with the multi-pin diode switch was complemented by wideband signal attenuation, and realized the physical implementation. In the test result of implemented limiter, when the pin diode switch is all off, it is possible to transmit the incoming signal without distortion. Also when the pin diode switch is turned on sequentially, the input signal is attenuated about 20dB or more step by step. Finally when all of them were turned on, attenuation about 50dB or more were measured for a wide bandwidth(1000MHz) in Ku-band.

본 논문에서는 Ku대역 레이더시스템의 핵심부품인 리미터에 대한 설계 및 제작 결과에 대해서 다룬다. 도파관 구조인 다중 PIN다이오드 스위치 특성을 적용하여 설계한 리미터의 신호감쇄 대역을 확장하여, 광대역에서 신호감쇄가 가능하도록 설계 및 구현을 하였다. 제작된 리미터를 대상으로 실험한 결과, PIN다이오드 스위치가 모두 OFF일 때 유입되는 신호가 감쇄없이 전달되었고, 순차적으로 PIN다이오드 스위치가 ON되면 Ku대역 유입 신호가 20dB이상, 그리고 모두 ON이 되면 1000MHz 대역폭 범위에서 50dB 이상의 감쇄가 이루어지는 것을 확인하였다.

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