》  Research Fields

 1.  High Speed and Ultra High Speed ADCs Related Topics.

(Including time-interleaving  and frequency-interleaving architecture)

  2.  High Precision ADCs Related Topics.

  3.  Low Power and Compact Temperature Sensors and Interface Circuits.

  4.  Low Power Baseband Processing/ Signal Chain.

》  Courses

1. Undergraduate:  Analog IC Analysis and Design.

2. Graduate: Advanced  IC Design

》  Projects

》  Publications

Journal   Paper

1.  Q. Lei, Supeng Liu, Zhongyuan Fang, Yuanjin Zheng, “An Adaptive Beamforming  Technique for UWB Impulse Transceiver,” IEEE Transaction on Circuits  and Systems II: Express Briefs (TCASII), Accepted, 2018.

2. Q.  Lei, K. P. Wang, T. Kai, Y. Zhu, L. Siek, Y. Zheng, S. U, “A 16mW  1GS/s With 49.6dB SNDR TI-SAR ADC for Software Defined Radio in 65nm  CMOS,” IEEE Transaction on Very Large Scale Integration Systems (TVLSI),  vol. 26, issue 3,pp. 572-583, 2018.

3. Q.  Lei, K. P. Wang, T. Kai, L. Siek, Y. Zheng, “A 10-bit 300 MS/s 5.8  mW SAR ADC With Two-Stage Interpolation for PET Imaging,” IEEE Sensors  Journal, vol. 18, issue 5,pp. 2006-2014, 2018.

4. Q.  Lei, S. P. Liu, Y, Zhang, Y. Zhu, Y. Zheng, S. U, “A 0.9–2.6 GHz  Cognitive Radio Receiver With Spread Spectrum Frequency Synthesizer  for Spectrum Sensing,” IEEE Sensors Journal, vol. 17, issue 22,pp.  7569-7577, 2017.

5. Lei  Qiu, Kai Tang, Yuanjin Zheng and Liter Siek,  A Flexible-Weighted  Nonbinary Searching Technique for High-Speed SAR-ADCs,” IEEE Transaction  on Very Large Scale Integration Systems (TVLSI), vol. 24, issue 8, pp.  4385-4399, 2016.

6. Lei  Qiu, Kai Tang, Yuanjin Zheng and Liter Siek, A High-Speed 2b/cycle  SAR ADC With Time Domain Quantization,” IEEE Transaction on Very Large  Scale Integration Systems (TVLSI), 2016, Accepted.

7. DaiGuo  Xu, Lei Qiu*, Zhengping Zhang, Tao Liu, Lu Liu, Siliu Xu,  A Linearity-Improved  8-bit 320 MS/s SAR ADC with Meta-Stability Immunity Technique,” IEEE  Transaction on Very Large Scale Integration Systems (TVLSI), Accepted,  2018.

8. K.  Wang, L. Qiu, J. Koo, R. Ruby and B. Otis, Design of 1.8-mW PLL-Free  2.4-GHz Receiver Utilizing Temperature-Compensated FBAR Resonator,  IEEE Journal of Solid-State Circuits (JSSC), vol. 53, issue 6, pp,1628-1639,  2018.

9. Y  Wang, L Lou, B Chen, Y Zhang, K Tang, Lei Qiu, S Liu, Y Zheng, A  260-mW Ku-Band FMCW Transceiver for Synthetic Aperture Radar Sensor  With 1.48-GHz Bandwidth in 65-nm CMOS Technology,” IEEE Transactions  on Microwave Theory and Techniques, vol. 65, issue 11, pp. 2808-2812,  2017.

10. Q.  Lei, Y. Zheng, S. Liter, Design of frequency interleaving ADC  with mismatch compensation,” Electronics Letters, vol. 50, issue.  9, pp. 659-661, 2014.

11. Q.  Lei, Y. Zheng, S. Liter,  A source follower based high-speed switched  capacitor amplifier for pipelined ADCs,” Electronics Letters, vol.  51, issue 1, pp. 21-23, 2015.

12. Q.  Lei, Kai Tang, Y. Zheng, S. Liter,  A Meta-stability Immunity  Technique for High Speed SAR ADCs,” Electronics Letters, vol. 53,  issue 5, pp. 300-302, 2017.

13. Keping  Wang, Lei Qiu*, Wang zhigong, 69-78GHz ESD-protected SiGe BiCMOS  power amplifier with 30dB automatic level control for mm-wave 5G applications,”  Electronics Letters, Accepted, 2018.

14. Lei  Qiu, Yuanjin Zheng, Siek Liter,  Multichannel Time Skew Calibration  for Time-Interleaved ADCs Using Clock Signal,” Circuits, Systems and  Signal Processing, vol 35, issue 8, pp. 2669-2682, 2016.

15. Lei  Qiu, Yuanjin Zheng, Siek Liter,  A Filter Bank Mismatch Calibration  Technique for Frequency-Interleaved ADCs,” Circuits, Systems and Signal  Processing, vol 35, issue 11, pp. 3847-3862, 2016.

Conference   Paper

1.  Q. Lei, T. Kai, Y. Zhu, L. Siek, Y. Zheng, S. U, “A 10-bit 1GS/s 4-Way  TI SAR ADC with Tapinterpolated FIR Filter based Time Skew Calibration,”  IEEE Asian Solid-State Circuit Conference (ASSCC), 2016, pp. 77-80.

2.  Y. Wang, K. Tang, Y. Zhang, L. Lou, B. Chen, S. Liu, Lei Qiu, Y. Zheng,  “A Ku-band 260mW FMCW SAR TRX with 1.48GHz BW in 65nm CMOS for Micro-UAVs,”  IEEE ISSCC, pp. 240-241, Jan. 2016.

3.  Q. Lei, Kai Tang, Y. Zheng, S. Liter,  A Digital Time Skew Calibration  Technique for Time-Interleaved ADCs,” in Proc. IEEE International  Symp. Circuits and System (ISCAS), 2015, pp. 2297-2300.

4.  Q. Lei, Y. Zheng, D. Zhu, S. Liter, A Statistic Based Time Skew  Calibration Method for Time-Interleaved ADCs,” in Proc. IEEE International  Symp. Circuits and System (ISCAS), 2014, pp. 2373–2376.

5.  Q. Lei, Y. Zheng, S. Liter,  Analysis and Design of High Performance  Frequency-Interleaved ADC,” in Proc. IEEE International Symp. Circuits  and System (ISCAS), 2013, pp. 2022- 2025.

6.  Y Wang, L Lou, B Chen, K Tang, Y Zhang, Lei Qiu, S Liu, Y Zheng, “Live  demonstration: A Ku-band FMCW synthetic aperture radar transceiver for  micro-UAVs”, in Proc. IEEE International Symp. Circuits and System  (ISCAS), 2016, pp. 2378- 2378..