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

  • 제25권3호
  • /
  • Pages.282-288
  • /
  • 2014
  • /
  • 1226-3133(pISSN)
  • /
  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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디지털 레이더 수신기의 RF-수신단 설계 및 분석

A Study on RF Receiver Design and Analysis of Digital Radar Receiver

  • 임은재 (경남대학교 정보통신공학과) ;
  • 황희근 (경남대학교 정보통신공학과) ;
  • 이영철 (경남대학교 정보통신공학과)
  • Lim, Eun-Jae (Department of Information & Communication Engineering, Kyung-nam University) ;
  • Hwang, Hee-Geun (Department of Information & Communication Engineering, Kyung-nam University) ;
  • Rhee, Young-Chul (Department of Information & Communication Engineering, Kyung-nam University)
  • 투고 : 2013.12.06
  • 심사 : 2014.03.10
  • 발행 : 2014.03.31
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 디지털 레이더 수신기의 광대역 특성과 선형성을 확보하기 위해 동적 영역 파라미터를 중심으로 RF-수신단을 분석 및 설계하였다. 광대역 특성과 수신기의 동적 영역 개선을 위해 8.8~9.8 GHz의 광대역폭에서 저잡음 증폭기를 잡음원 매칭을 설계하여 잡음 지수를 최소화하였으며, 능동혼합기를 설계를 통한 수신기의 변환 이득 특성을 확보하여 RF-수신단의 선형성을 개선시켰다. 설계된 RF-수신단은 8.8~9.8 GHz의 광대역에서 이득 63 dB, 잡음 지수 1.2 dB을 얻었으며, RF-수신단의 동작영역은 75.8 dB의 특성을 나타내며, X-Band 디지털 레이더 수신기에 응용 가능함을 보였다.

In this paper, we have analyzed and designed a digital RF receiver based on the optimization of the dynamic range parameter to secure the wideband characteristics and linearity of digital radar receivers. To improve the wideband characteristics and dynamic range, a low noise amplifier is matching design with a noise source to minimize the noise figure in 1 GHz bandwidth and we improved the linearity of RF-receiver by securing the conversion gain characteristics of receiver through the design of active mixer. RF receiver is designed to give gain 63 dB, noise figure 1.2 dB and dynamic range of RF receiver has 75.8 dB in a wide band of 8.8~9.8 GHz. It is shown to be applicable to X-band digital radar receiver.

키워드

참고문헌

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