J. Semicond. > 2008, Volume 29 > Issue 4 > 800-805

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A CMOS Down-Converting Mixer For OFDM UWB Receivers

Hu Jiasheng, Li Wei and Li Ning

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Abstract: A down-converting mixer fabricated with 0.18μm RF CMOS technology is designed for OFDM-UWB applications.Differing from conventional Gilbert cell topology,a differential topology is proposed and applied in order to reduce the noise contribution and disturbance from the large signal of the local oscillation,as well as to lower the DC consumption of the mixer.The test result demonstrates that over the intermediate frequency band of 4~252MHz,the mixer achieves conversion gain of above 2.5~7.8dB,NF of 22.5~26dB,isolation among the ports of about -50dB,and consumes about 8mA under a 1.8V supply.

Key words: CMOSOFDMUWBMixer

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    Received: 18 August 2015 Revised: 09 December 2007 Online: Published: 01 April 2008

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      Hu Jiasheng, Li Wei, Li Ning. A CMOS Down-Converting Mixer For OFDM UWB Receivers[J]. Journal of Semiconductors, 2008, In Press. Hu J S, Li W, Li N. A CMOS Down-Converting Mixer For OFDM UWB Receivers[J]. J. Semicond., 2008, 29(4): 800.Export: BibTex EndNote
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      Hu Jiasheng, Li Wei, Li Ning. A CMOS Down-Converting Mixer For OFDM UWB Receivers[J]. Journal of Semiconductors, 2008, In Press.

      Hu J S, Li W, Li N. A CMOS Down-Converting Mixer For OFDM UWB Receivers[J]. J. Semicond., 2008, 29(4): 800.
      Export: BibTex EndNote

      A CMOS Down-Converting Mixer For OFDM UWB Receivers

      • Received Date: 2015-08-18
      • Accepted Date: 2007-07-10
      • Revised Date: 2007-12-09
      • Published Date: 2008-04-03

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