BSc Z. Zong

PhD student
Electronic Circuits and Architectures (ELCA), Department of Microelectronics

PhD thesis (Jun 2019): High-Purity Digitally Intensive Frequency Synthesis Exploiting Millimeter-Wave Harmonics
Promotor: Bogdan Staszewski

Expertise: mm-wave design


Zhirui Zong is a PhD candidate researcher at TU Delft since January 2013. Before joining the team, he was an research assistant in RFIC group, Institute of Electromagnetics from University of Electronic Science and Technology of China (UESTC) in Chengdu.

His research interests are:

  1. Multiple coupled inductors modeling.
  2. CMOS 40 GHz mixer design in a direct down‐conversion receiver.
  3. Accurate passive modeling in mm‐wave regime.
  4. Designed a down‐conversion mixer using current bleeding techniques in 90 nm CMOS technology.


  1. A 2.6-to-4.1GHz Fractional-N Digital PLL Based on a Time-Mode Arithmetic Unit Achieving -249.4dB FoM and -59dBc Fractional Spurs
    Gao, Zhong; He, Jingchu; Fritz, Martin; Gong, Jiang; Shen, Yiyu; Zong, Zhirui; Chen, Peng; Spalink, Gerd; Eitel, Ben; Yamamoto, Ken; Staszewski, Robert Bogdan; Alavi, Morteza S.; Babaie, Masoud;
    In 2022 IEEE International Solid- State Circuits Conference (ISSCC),
    pp. 380-382, 2022. DOI: 10.1109/ISSCC42614.2022.9731561

  2. Flexible and Highly Sensitive Pressure Sensor Based on Patterned PDMS Forming with Laser Pyrolysis Direct Write Technique for Wearable Electr
    Shaogang Wang; Qihang Zong; Chunjian Tan; Huaiyu Ye; Paddy French;
    In MNE 2022,
    September 2022.

  3. A supply pushing reduction technique for LC oscillators based on ripple replication and cancellation
    Chen, Yue; Liu, Yao-Hong; Zong, Zhirui; Dijkhuis, Johan; Dolmans, Guido; Staszewski, Robert Bogdan; Babaie, Masoud;
    IEEE Journal of Solid-State Circuits,
    Volume 54, Issue 1, pp. 240--252, 2019.

  4. A 60 GHz Frequency Generator Based on a 20 GHz Oscillator and an Implicit Multiplier
    Z. Zong; M. Babaie; R. B. Staszewski;
    IEEE Journal of Solid-State Circuits,
    Volume 51, Issue 5, pp. 1261-1273, May 2016. DOI: 10.1109/JSSC.2016.2528997
    Keywords: ... CMOS digital integrated circuits;field effect MIMIC;frequency multipliers;millimetre wave frequency convertors;millimetre wave oscillators;phase noise;FoM;PN performance;digital CMOS process;extraction techniques;figure-of-merit;frequency 20 GHz;frequency 57.8 GHz;frequency 60 GHz;frequency generator;frequency tuning range;implicit multiplier;local oscillator signal;mm-wave frequency generation technique;phase detection;phase noise performance;phase-locked loop;power efficiency;size 40 nm;third-harmonic boosting techniques;Boosting;Frequency conversion;Harmonic analysis;Oscillators;Phase locked loops;Power demand;Resonant frequency;60 GHz;60 GHz;PLL;frequency divider;harmonic boosting;harmonic extraction;implicit multiplier;mm-wave;oscillator;phase noise (PN);transformer.

  5. An Implantable Stimulator With Safety Sensors in Standard CMOS Process for Active Books
    Liu, Xiao; Valente, Virgilio; Zong, Zhulin; Jiang, Dai; Donaldson, Nick; Demosthenous, Andreas;
    IEEE Sensors Journal,
    Volume 16, Issue 19, pp. 7161--7172, October 2016. DOI: 10.1109/JSEN.2016.2577688

  6. A 60 GHz 25% tuning range frequency generator with implicit divider based on third harmonic extraction with 182 dBc/Hz FoM
    Z. Zong; M. Babaie; R. B. Staszewski;
    In 2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC),
    pp. 279-282, May 2015.

BibTeX support

Last updated: 14 Jun 2019

Zhirui Zong