Journal of Jishou University(Natural Sciences Edition)

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Design of a Novel Amplifier-Based Mixer

LIU Jing,ZENG Fangyan,LI Yuting,ZHOU Kaiqing   

  1. (College of Information Science and Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2018-03-25 Published:2018-04-28


This paper describes a low-voltage and low-power 2.4 GHz mixer for ISM band wireless applications.The approach is based on a two stage amplifier,and the Gilbert switch stage is inserted between the two amplifier stages.The proposed amplifier-based mixer delivers a remarkable conversion gain of 13 dB with a local oscillator  power of 7 dBm,while consuming only 1.05 mW DC power from a 0.8 V supply voltage.The input-referred third-order intercept point of the mixer is 3.82 dBm,and the chip area is only 0.429 mm2.

Key words: CMOS, low-voltage and low-power, amplifier, mixer

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