The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design and Implementation of an L-Band Single-Sideband Mixer with CMOS Switches and C-Band CMOS QVCO

CMOS 스위치부를 갖는 L-대역 단측파대역 주파수 혼합기 및 C-대역 QVCO 설계 및 제작

  • Lee, Jung-Woo (LIG NEX1) ;
  • Kim, Nam-Yoon (Dae-duk college, Dept. of Technology and commisioned officer, Division of Special Millitary) ;
  • Kim, Chang-Woo (Kyung-hee University, Radio&Electronic Engineering Dapartment RFSOC lab.)
  • Received : 2013.11.25
  • Accepted : 2014.11.27
  • Published : 2014.12.31
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Abstract

An L-band single side band(SSB) mixer with CMOS switches and a C-band quadrature voltage-controlled oscillator(QVCO) have been developed using the TowerJazz 0.18-um RFCMOS process. The SSB mixer exhibits a conversion gain of 6.6 ~ 7.5 dB with a 70-dBc image rejection ratio and 65-dBc port isolation. The oscillation frequency range of the QVCO is 6.2 ~ 6.7 GHz with an output power of 4~6 dBm. For measurement, 1.8 V supply voltage is used while drawing 36 mA for the mixer and 23 mA for the QVCO.

CMOS 스위치부를 이용해 출력주파수의 상/하향 변환을 제어하는 L-대역용 단측파 대역 주파수 혼합기 회로(mixer)와 C-대역용 쿼드러쳐 전압 제어발진기(QVCO)를 제안하고 TowerJazz 사의 0.18 um RFCMOS 공정을 사용하여 설계 및 제작하였다. 제안된 주파수혼합기의 L대역 출력 특성은 변환이득 6.6~7.5 dB, 이미지 제거비 70 dBc, 단자간 격리도 65 dBc 이다. 전압 제어 발진기는 6.2~6.7 GHz 의 주파수 튜닝 범위에서 4 dBm 의 출력전력을 공급한다. 공급전압은 1.8 V이며, 주파수 혼합기 중심부와 스위치에 공급되는 총 전류는 36 mA, 전압 제어 발진기에 공급되는 총 전류는 23 mA 이다.

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References

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