Weifeng Liu

Contact Information

  • Email Address: weifeng.liu@duke.edu

Education

  • Sep.2005 – Mar. 2012
  • Ph.D in School of Microelectronics, Xidian University
  •  Major: Microelectronics and Solid State Electronics
  •  Research area: Theory and Chip-Implementation of UHF RFID
  • Sep.2002 –Mar. 2005
  •   M.D. in Department of Technical Physics, Xidian University
  •   Major: Microelectronics and Solid State Electronics
  •  Research area: System of Image Codec
  • Aug. 1998 –Jun.2002
  •   B.E. in Department of Technical Physics, Xidian University
  •   Major: Microelectronics and Solid State Electronics
  • Professional Experience
  • July 2016– Present, Associate Professor, School of Microelectronics, Xidian University ,China
  • March 2007 – June 2016, Lecturer, School of Microelectronics, Xidian University,China
  • March 2005 – February 2007, Teaching Assistant and Research Assistant School of Microelectronics, Xidian University,China

Research Interests

  • Ultra-low power IC design
  • Large scale digital IC design
  •  Lab on a Chip, Bioinstrumentation, and Biomedical Micro/Nano Systems 

Publications

  • LIU Wei-feng,Zhuang Yi-qi,Qi Zeng-wei,Tang Long-fei,Du Yong-qian. Design of UHF  RFID  Tag Integrated With temperature Sensor.  JOURNAL OF CIRCUITS AND SYSTEMS , 2013,18(1):336-342
  • LIU Wei-feng,Zhuang Yi-qi,Tang Long-fei,Jin Zhao. Novel Structure design of the passive UHF RFID tag-chip,JOURNAL OF XIDIAN UNIVERSITY,2010 37(6):1092-1097
  • LIU Wei-feng,Zhuang Yi-qi,Zhou Junchao,Tang Long-fei,Jin Zhao.Clock generator with high stability for the UHF RFID chip.  JOURNAL OF XIDIAN UNIVERSITY,2011 38(4):71-76
  • Liu Wei-Feng, Song Jian-Jun. Hole quantization and conductivity effective mass of the inversion layer in (001) strained p-channel metal-oxid-semiconductor, Acta Physica Sninica,2014,63(23):238501-1~6
  • Longfei Tang, Yiqi Zhuang, Weifeng Liu, Zhao Jin, Xiaoming Li. A clock-free decoder and continuous BLF generator for EPCglobal Gen2 UHF RFID tags. Analog Integr Circ Sig Process. 2010, 65(2): 265–271
  •  Yongqian Du, Yiqi Zhuang, Xiaoming Li, Weifeng Liu, Zhenrong Li,Zengwei Qi. An Ultra Low-Power Solution for EEPROM in Passive UHF RFID Tag IC With a Novel Read Circuit and a Time-Divided Charge Pump, IEEE Transactions on Circuits and Systems I,2013, 60(8): 2177 – 2186
  • Yongqian Du, Yiqi Zhuang, Xiaoming Li, Weifeng Liu, Zengwei Qi, Yue Yin. A reliable demodulator and a power regulation circuit with an accurate and small-size voltage reference in UHF RFID. Microelectronics Journal 2013 44:72–79
  •  ZengweiQi, YiqiZhuang,XiaomingLi,WeifengLiu,YongqianDu,BoWang. Full passive UHF RFID Tag with an ultra-low power, small area, high resolution temperature sensor suitable for environment monitoring. Microelectronics Journal 2014 45 :126–131
  • Jin Zhao,YiqiZhuang,Qiao Liping,Liu Weifeng,Tang Longfei,LiBing. Source-pull based impedance and sensitivity measurements of UHF RFID chips, Chinese Journal of Scicentific Instrument,2010 31(12):2842-2847
  • Du Yongqian, Zhuang  Yiqi, Li Xiaoming, Liu Weifeng. Low power RF/analog front-end solution for UHF RFID, Journal of  Huazhong University of Science and Technology,2014 42(9):81-87
  • DU Yong-qian, ZHUANG Yi-qi, LI Xiao-ming, and LIU Wei-feng. New Type of Low-Power Exponential Current Generator for VGA,Journal of University of Electronic Science and Technology of China, 2014 43(2):282-286
  • QI Zeng-wei，ZHUANG Yi-qi，LI Xiao-ming，LIU Wei-feng. A design of voltage regulator for UHF ＲFID tag chip, Journal of Northwest University ( Natural Science Edition),2016 46(3):346-350s

Patents

  •   “Analog Front Circuits of  UHF RFID Tag Chips” (ZL200910023886.0, July 20,2011)
  • “Generation Circuits  and Method of Back-link Clock in  UHF RFID Tag Chips” (ZL200910023885.6, May 9, 2012);
  •  “Low-power temperature sensing circuits used in UHF RFID Tag Chips” (ZL201110024519.X,July 25,2012)
  • “Decoder and Decoding Methods in UHF RFID Tag Chips”(ZL200910023887.5,September 25,2013)
  •  “Information Coding Methods, Information-Transfer Methods and Instruments In Read to Tag Links”(ZL201110053318.2, April 24,2013)
  •  “Bandgap Reference Circuits Applied for UHF RFID Tag Chips” (ZL201110244795.7,August 14, 2013)
  •  “Single Poly Memory with Differential Structures Applied for UHF RFID Tag Chips” (ZL201110024529.3,December 5,2012)
  • “Read Circuits For EEPROM Used in UHF RFID Tag Chips”(ZL201110245181.0, August 20, 2014)