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

  • 제21권4호
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  • Pages.381-391
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  • 2010
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  • 1226-3133(pISSN)
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  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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MEMS 스위치 기반 재구성 고출력 증폭기를 갖는 재구성 능동 배열 안테나 시스템

A Reconfigurable Active Array Antenna System with Reconfigurable Power Amplifiers Based on MEMS Switches

  • 명성식 (연세대학교 전기전자공학과) ;
  • 엄순영 (한국전자통신연구원 전파기술연구부) ;
  • 전순익 (한국전자통신연구원 전파기술연구부) ;
  • 육종관 (연세대학교 전기전자공학과) ;
  • ;
  • 임규태 ;
  • Myoung, Seong-Sik (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Eom, Soon-Young (Radio Technology Research Department, Electronics and Telecommunications Research Institute) ;
  • Jeon, Soon-Ik (Radio Technology Research Department, Electronics and Telecommunications Research Institute) ;
  • Yook, Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Wu, Terence (Georgia Electronic Design Center, Georgia Institute of Technology) ;
  • Lim, Kyu-Tae (Georgia Electronic Design Center, Georgia Institute of Technology) ;
  • Laskar, Joy (Georgia Electronic Design Center, Georgia Institute of Technology)
  • 발행 : 2010.04.30
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 상용 초고주파 MEMS 스위치를 이용하여 세 개의 주파수 대역에서 재구성 동작이 가능한 주파수 재구성 능동 배열 안테나 시스템(Reconfigurable Active Array Antenna System: RAA System)을 제안하였다. MEMS 스위치는 삽입 손실 및 선형성 특성이 우수하고 격리도가 높아 주파수 재구성 시스템 구현 시, 재구성을 위한 스위치로 인한 성능 열화가 거의 없다는 장점이 있다. 제안된 주파수 재구성 능동 배열 안테나 시스템은 간단한 구조의 임피던스 매칭 회로(Reconfigurable impedance Matching Circuit: RMC)를 갖는 주파수 재구성 증폭기(Reconfigurable Front-end Amplifier: RFA)가 집적화 되어 있으며, 안테나 방사체(Reconfigurable Antenna Element: RAE)와 재구성 제어 보드(Reconfiguration Control Board: RCB)로 구성되어 있다. 본 논문에서 제안한 RAA 시스템은 850 MHz, 1.9 GHz, 3.4 GHz의 세 개 주파수로 재구성되어 동작하며, 안테나 방사체는 $2{\times}2$ 배열을 가지고 각각의 방사체는 광대역 다이폴 형태를 갖는다. 제작된 RAA 시스템은 실험을 통하여 그 타당성을 확인하였다.

In this paper, a novel frequency reconfigurable active array antenna(RAA) system, which can be reconfigurable for three reconfigurable frequency bands, is proposed by using commercial RF MEMS switches. The MEMS switch shows excellent insertion loss, linearity, as well as isolation. So, the system performance degradation of the reconfigurable system by using MEMS switches can be minimized. The proposed frequency reconfigurable active antenna system is consisted with the noble frequency reconfigurable front-end amplifiers(RFA) with the simple reconfigurable impedance matching circuits(RMC), reconfigurable antenna elements(RAE), as well as a reconfiguration control board(RCB) for MEMS switch control. The proposed RAA system can be reconfigurable for three frequency bands, 850 MHz, 1.9 GHz, and 3.4 GHz, with $2{\times}2$ array of the RAE having broadband printed dipole antenna topology. The validity of the proposed RFA as well as RAA is also presented with the experimental results of the fabricated systems.

키워드

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