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3~5 GHz 광대역 저전력 Single-Ended IR-UWB CMOS 수신기

A Low Power Single-End IR-UWB CMOS Receiver for 3~5 GHz Band Application

  • Ha, Min-Cheol (Depatment of Electronic Engineering, Kwang Woon University) ;
  • Park, Byung-Jun (Depatment of Electronic Engineering, Kwang Woon University) ;
  • Park, Young-Jin (Korea Electro Technology Research Institute) ;
  • Eo, Yun-Seong (Depatment of Electronic Engineering, Kwang Woon University)
  • 발행 : 2009.07.31

초록

본 논문에서는 IR-UWB 통신에 적합한 저전력, 저복잡도의 CMOS RF 수신기를 제작하였다. 제안된 IR-UWB 수신기는 비교적 구조가 간단한 non-coherent demodulation 방식으로 설계, 제작되었다. 설계된 IR-UWB 수신기는 single-ended 2-stage LNA, S2D, envelop detector, VGA, comparator로 구성되어 있으며, 0.18 ${\mu}m$ CMOS 공정 기술을 이용하여 단일 칩으로 설계, 제작하였다. 측정 결과 data rate이 1 Mbps 일 때 BER값이 $10^{-3}$ 조건에서 sensitivity는 -80.8 dBm이다. 제작된 단일 칩 CMOS IR-UWB 수신기의 전류 소모는 전압이 1.8 V 일 때, 13 mA이며 23.4 nJ/bit 의 성능을 갖는다.

A fully integrated single ended IR-UWB receiver is implemented using 0.18 ${\mu}m$ CMOS technology. The UWB receiver adopts the non-coherent architecture, which simplifies the RF architecture and reduces power consumption. The receiver consists of single-ended 2-stage LNAs, S2D, envelope detector, VGA, and comparator. The measured results show that sensitivity is -80.8 dBm at 1 Mbps and BER of $10^{-3}$. The receiver uses no external balun and the chip size is only $1.8{\times}0.9$ mm. The consumed current is very low with 13 mA at 1.8 V supply and the energy per bit performance is 23.4 nJ/bit.

키워드

참고문헌

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