정보와 통신 (Information and Communications Magazine)

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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60GHz 빔포밍 트랜시버 기술 연구

  • 발행 : 2012.10.31
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초록

60GHz 주파수는 최대 9GHz 까지 엄청난 대역폭을 활용하여 Gbps급의 무선전송이 가능한 대역으로서, 최근 이 대역을 댁내 무선전송장치 및 초고속 무선랜에 활용하기 위한 연구가 활발히 진행되고 있다. 이와 같이 60GHz에 대한 관심도가 높아진 이유는, 밀리미터파 통신이 기존에는 무선 백홀용으로 주로 사용되었던것에 비해 지금은 가정 및 사무실내에서의 초고속 네트워크 또는 영상가전에서의 무선 전송장치 등 응용분야의 다변화가 예상됨에 따라, ISM 대역이면서 광대역을 활용할 수 있는 60GHz가 급부상하게 된 것으로 본다. 이와 함께 CMOS 칩기술의 꾸준한 발전으로 현재는 수 십 나노공정을 이용하여 테라헤르쯔 대역에서도 동작하는 칩이 발표되고 있는 바 그동안 60GHz 시장 확산의 가장 큰 걸림돌이 었던 무선 전송장치의 높은 가격, 사이즈, 소모전력의 문제를 한꺼번에 해결할 수 있게 된 점도 이유중 하나이다. 따라서 이와 관련하여 본고에서는 ETRI와 KETI를 중심으로 진행되어 온 "60GHz 무선 전송장치에 탑재 가능한 범용 CMOS 송수신 칩 및 이를 활용한 빔포밍 트랜시버 기술에 관한 연구"를 소개하고자 한다.

키워드

참고문헌

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