Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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DC Power Dissipation Characteristics for Dual-mode Variable Conversion Gain Mixer

이중모우드 가변 변환이득 믹서의 전력 효율 특성

  • Park, Hyun-Woo (Dept. of Electronics Eng., University of Incheon, Korea) ;
  • Koo, Kyung-Heon (Dept. of Electronics Eng., University of Incheon, Korea)
  • 박현우 (인천대학교 공과대학 전자공학과) ;
  • 구경헌 (인천대학교 공과대학 전자공학과)
  • Published : 2006.06.21
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Abstract

In this paper, dual-gate mixer has been designed and optimized to have variable conversion gain for WiBro and WLAN applications and to save power. With the LO power of 0dBm and RF power of -50dBm, the mixer shows 15dB conversion gain. When RF power increases from -50dBm to -20dBm, the conversion gain decreases to -2dB with bias change. The variable conversion gain can reduce the high dynamic range requirement of AGC burden at IF stage. Also, it can save the dc power dissipation of mixer up to 90%.

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