PEOPLE

Fall 2017

FACULTY

Peter Kinget is the Bernard J. Lechner Professor of Electrical Engineering at Columbia University in New York. He received his engineering and Ph.D. degrees in electrical engineering from the Katholieke Universiteit in Leuven (Belgium). His research group focusses on the design of analog and RF integrated circuits in scaled technologies and the novel systems or applications they enable in communications, sensing, and power management.

For additional information visit My Homepage

PhD STUDENTS

Scott Newton is a part-time PhD student in Prof. Kinget's Group.

Matthew Bajor received his B.S and M.S. degrees in electrical engineering from New Jersey Institute of Technology (NJIT) in 2008 and 2009, respectively. He is currently working toward his Ph.D. degree.
His research interests includes analog & RF IC design, specifically for cognitive radio and multi-antenna/nodes sensing architectures.

Subhajit Ray received a BSE in Electrical Engineering and certificate in Engineering Physics from Princeton University in 2015. After one year in a quantum computing government research lab, he is now pursuing an MS/PhD in Electrical Engineering at Columbia University. His research interests are analog integrated circuits, time-mode signal processing, unconventional computing, and machine learning applications.
He was the recipient of the Engineering Physics Senior Thesis Award, 2015, and the CICC and ISSCC Student Travel Grant Awards in 2019 and 2022, respectively. He was a design engineer intern at Analog Devices in 2018. He serves as a peer reviewer for the IEEE Solid-State Circuits Letters.

Petar Barac received his B.S.E.E. degree from the University of Illinois at Urbana-Champaign in 2017 and his M.S.E.E. degree from Columbia University in 2019. Currently, he is working towards his Ph.D. degree.
HIs research interests include analog & RF IC and system design.

Rui "Ray" Xu received his B.S.E.E. and B.S. Physics degrees from the University of Texas at Austin in 2018. He joined the group in Fall of 2020 and currently is on the MS-to-PhD track in electrical engineering.
His research interests include analog CMOS circuit design, particularly for use in physics instrumentation systems, and ionizing radiation effects on CMOS devices.

Adam Chamberlain received his B.S. Nuclear Engineering Technology from Thomas Edison University in 2003 and M.S. Electrical Engineering from the University of Kentucky in 2005. He is currently a spice modeling engineer for Infineon Technologies and working part time towards the Eng.Sc.D degree.
His research interests include using embedded non-volatile memory cells in analog memory and machine learning applications.

Ph.D. Alumni

Daniel de Godoy received the B.S. degree in electrical engineering from the Universidade Federal de Pernambuco (UFPE), Brazil, in 2012, and the M.S. degree in electrical engineering from Columbia University in 2015.
His research interests include ultra-low-power analog and mixed-signal sensor interfaces and their roles in embedded IoT systems.
Daniel obtained his Ph.D. in Oct. 2019 with a thesis entitled: "Ultra-Low Power IoT Solutions for Sounds Source Localization: Combining Mixed-Signal Processing and Machine Learning".

Shravan Nagam received his B.Tech and M.Tech degrees in electrical engineering from Indian Institute of Technology (IIT) Madras. From 2011 to 2014, he worked as an Analog Engineer at Intel, Bangalore.
He is the recipient of Analog Devices outstanding student designer award. His areas of interest include analog and RF circuits with special focus on PLLs.
Shravan obtained his Ph.D. in Feb. 2020 with a thesis entitled: "High Performance Sub-Sampling Phase Detector based Ring-Oscillator PLLs".

Sarthak Kalani received his B.S. degree in electrical engineering from Indian Institute of Technology, Delhi (India) in 2013, and his M.S. degree in electrical engineering from Columbia University in 2014. His research interests include time-domain amplifiers and hybrid pipeline-SAR ADCs.
Sarthak obtained his Ph.D. in November 2019 with a thesis entitled: "Voltage and Time-Domain Analog Circuit Techniques for Scaled CMOS Technologies".

Tanbir Haque received his B.S.E.E and M.S.E.E degrees from the State University of New York at Stony Brook and the New York University Tandon School of Engineering.
He also received his M.S. degree in applied mathematics from Columbia University, He is currently a Principal Engineer with the Incubation and Strategy Group at InterDigital Communications.
Tanbir obtained his Ph.D. in July 2019 with a thesis entitled: "A Flexible RFIC Architecture for High-Sensitivity Reception and Compressed-Sampling Wideband Detection".

Vivek Mangal received his B.S. degree in Electrical Engineering and M.S. degree in Information and Communication Technology from Indian Institute of Technology, Delhi in 2015. His research interests include ultra-low-power transceivers and high-performance PLL synthesizers.
Vivek obtained his Ph.D. in Sept. 2019 with a thesis entitled: "Energy Detecting Receivers for Wake-Up Radio Applications".

Yudong Zhang received his B.S. degree in electrical engineering from Xi’an Jiaotong University (China) in 2011, and his M.S. degree in integrated circuit engineering from Tsinghua University (China), in 2015.
His research interests include transceiver design for optical links and high-performance RF wireless communication circuits.
Yudong obtained his Ph.D. in April 2021 with a thesis entitled: "Design of Power-Efficient Optical Transceivers and Design of High-Linearity Wireless Wideband Receivers".

Guoxiang Han received his B.S.E.E. in 2015 from Beijing Institute of Technology (China) and his M.S.E.E. from Columbia University in 2016.
His research interests include multi-antenna phased-array systems and next-generation concurrent receivers. Guoxiang received the "Millman Teaching Assistant Award" from the Columbia EE department in 2017, 2019 and 2020.
Guoxiang obtained his Ph.D. in April 2021 with a thesis entitled: "High-Performance Reconfigurable Radio-Frequency Integrated-Circuit Receiver Architectures for Concurrent Signal Reception".

Zhaowen Wang received his B.Eng. degree from Zhejiang University, Hangzhou, China, in 2017, his M.S. and Ph.D. degrees from Columbia University, New York, NY, USA, in 2018 and 2022 respectively, all in Electrical Engineering.
In 2022, he joined AMD, San Jose, CA, USA. His current research interests include analog and mixed-signal circuits for high-performance electrical and optical links.
Dr. Wang defended his Ph.D. dissertation titled "Efficient and High-Performance Clocking Circuits for High-Speed Data Links", in February 2022.

Gautam Gangasani, “Architectures and Circuits Leveraging Injection-Locked Oscillators for Ultra-Low Voltage Clock Synthesis and Reference-less Receivers for Dense Chip-to-Chip Communications,” March 27th 2018; currently at Global Foundries, Fishkill, NY, USA.
Yang Xu, “Switched-Capacitor RF Receivers for High Interferer Tolerance,” Nov. 16th 2017; currently at Apple, Inc, Cupertino, CA, USA.
Jianxun Zhu, “Architectures and Circuit Techniques for High Performance Field Programmable CMOS Software Defined Radios,” Jan. 31st 2017; currently at Blue Danube Labs, Warren, NJ, USA.
Rabia Tugce Yazicigil, “Compressive Sampling as an Enabling Solution for Energy-Efficient and Rapid Wideband RF Spectrum Sensing in Emerging Cognitive Radio Systems,” Feb. 29 2016; co-advised with J. Wright, currently Assistant Professor ECE at Boston University, Boston, MA, USA.
Chunwei Hsu, “Challenges and Solutions for High Performance Analog Circuits with Robust Operation in Low Power Digital CMOS,” Jan. 20 2014; currently at Analog Devices, Somerset, NJ, USA.
Jayanth Kuppambatti, “Design Techniques for Analog-to-Digital Converters in Scaled CMOS Technologies,” March 27 2014; currently at Seamless Microsystems, San Jose, CA, USA.
Baradwaj Vigraham, “Power Efficient Circuit Architectures for Receivers Leveraging Nanoscale CMOS”, March 14 2014; currently at Maxlinear, San Jose, CA, USA.
Karthik J. Tripurari , “RF Frontend for Spectrum Analysis in Cognitive Radio,” Nov. 15 2013; currently at Qualcomm, San Diego, CA, USA.
Kshitij Yadav, “Ultrasound Data Communications for Ultra-low-power Wake-up in Sensor Nodes”, Sept. 28 2012; co-advised with I. Kymissis; currently at Qualcomm, San Diego, CA, USA.
Shih-An Yu, “Design Techniques for Frequency Synthesizers in Highly Scaled CMOS Technologies,” Dec. 15 2010; currently at Via-Telecom, Taipei, Taiwan.
Yiping Feng, “Digitally Assisted Linearity Calibration Techniques for High Performance Direct Conversion Receivers,” April 27 2010; currently at Blue Danube Labs, Warren, NJ, USA.
Ajay Balankutty, “Architectures and Circuit Design Techniques for Ultra Low Voltage CMOS Receivers,” February 26 2010; currently at Intel Labs, Portland, OR, USA.
Junhua Shen, “Design Techniques for Ultra-Low-Voltage and Ultra-Low-Power Pipelined ADCs,” February 23 2010; currently at Analog Devices, Wilmington, MA, USA.
Anuranjan Jha, “Current-Steering Digital-to-Analog Converter Based Pulse Generation Techniques for Ultra-Wideband Pulse Radio Transmitter,” October 28 2008; currently at Apple, Cupertino, CA, USA.
Frank Zhang, “Ultra Wideband Pulse Radio Receivers in Digital CMOS Process,” March 17 2008; currently at GlobalFoundries, Dallas, TX, USA.
Babak Soltanian, “Design Techniques for Low-noise LC Voltage-controlled Oscillators,” May 8 2006; currently at Cepand Inc., San Francisco, CA, USA.
Shouri Chatterjee, “Analog Design Techniques at 0.5V,” October 21 2005; currently Professor at the Indian Institute of Technology Delhi, Dept. of Electrical Engineering, Delhi (India).

Former B.S./M.S. STUDENTS

Ciyuan Zhang received his B.S. degree in electrical engineering from Xi’an Jiaotong University (China) in 2016. His research interests include communication circuits and signal processing. He has worked on a DoA-scanning project during summer 2017.

Louisa Sainz de la Maza received her B.S in electrical engineering from Columbia University in 2018. She is currently working towards her M.S in electrical engineering while working at IBM on analog circuit design. Her research interests include ultra-low-power transceivers. She is currently working at IBM

Rupal Gupta received her B.Tech. degree in electrical engineering from Indian Institute of Information Technology (India) in 2013 and her M.S. degree from Columbia University in 2018. From 2013 to 2016, she was an RF front-end hardware engineer at Qualcomm (India). She is currently working at Qualcomm (CA). Her research interests include RF and mixed signal circuit and system design.

Wendy Fernandez is a senior electrical engineering student at the City College of New York (CCNY). Her research interest includes ultra-low-power analog&RF circuits. She worked on an ultra-low-power analog sensors project with Daniel de Godoy during the 2017-2018 academic year.

Michael Unanian graduated at the University of California, San Diego for his B.S.E.E. degree with Honors in 2017. He received his M.S.E.E. degree from Columbia University in 2019..
His research interests include low power IC design and high performance PLL design.

MS Project Students

Hongyi Li, “CMOS Annealer Design Based on Injection Locking Oscillators” Spring 2020.
Andrew Kang, “VCO-OTAs for RF Receivers,” Fall 2018-Spring 2019.
Petar Barac, “Spectrum Scanning in Multi-Antenna Receivers,” Fall 2018-Spring 2019.
Sobhit Srivastava, “NanoPower Energy Harvesting,” Fall 2018.
Louisa Sainz de la Maza, “Ultra-Low-Power Wireless Communications in Tag Networks,” Fall 2018
Ciyuan Zhang, “Signal Processing for Compressive-Sampling Direction-of-Arrival Finder,” Summer 2017 - Fall 2017
Robert Blayne Kettlewell, “Compressive Sampling DSP on FPGAs,” Summer 2016 – Fall 2016
Zarion Jacobs, “Antennas for Phased Arrays,” Fall 2015 – Spring 2016 – Summer 2016 – Fall 2016.
Damla Dimlioglu, “Radiation Hard Analog-to-Digital Converter for the CERN LHC,” Fall 2015 – Spring 2016
Suhas Rao, “Analysis and Modeling of Voltage-Controlled Oscillator Based Amplifiers,” Fall 2015 – Spring 2016
Guoxiang Hang, “RF applications of Quadrature Hybrids,” Fall 2015 – Spring 2016
Sanket Gupta, “Voltage-Controlled Oscillator Based Linear Dropout Regulators,” Spring 2015 – Fall 2015.
Manoj Gupta, “Pseudo Random Noise generators for compressed sampling systems,” Fall 2014 - Fall 2015.
Ethan (YiChen) Zhu, “FPGA Implementation of Compressive Sampling Recovery,” Fall 2014.
Jonathan Chang, “Analysis of FBAR Resonators, Fall 2014.
Sagar Vaze, “Phase Locked Loops for Nanoscale CMOS,” Fall 2013-Spring 2014.
Mengxi Lin, “UWB Pulse Radio Interfaces with Enhanced Range for EnHANTs,” Spring 2013, Summer 2013, Fall 2013.
Vaibhav Pandey, “Coherent UWB Pulse Radio RF Front Ends,” Spring – Fall 2013.
Branislav Jovanovic, “Building Blocks for Cognitive Radio Systems,” co-advised with H. Krishnaswamy, Fall 2012 – Spring 2013.
Younwan Kim, “Energy Harvesting Module for EnHANTs,” Spring 2013.
Michael Whalen, “VLSI Implementation of PN Sequence Generators,” Fall 2012.
Xiang Li, “Efficient Residue Amplifiers for A/D conversion,” Spring – Fall 2012.
Meng Wang, “UWB Pulse Radio Interfaces for Energy Harvesting Active Networked Tags,” Fall 2011 - Fall 2012.
Hao Wang, “UWB Pulse Radio Software Drivers,” Spring 2012 – Fall 2012.
Pranav Sood and Jian Lu, “UWB Pulse Radio Testing,” Fall 2012.
Scott Newton, “Review study of ADC specifications for Wireless Applications,” Fall 2011-Spring 2012.
Teng Yang, “Modeling and Analysis of Iterative Downconverters,” Fall 2011-Spring 2012.
Chen Keng, “Highly Integrated Power Factor Correction Circuits,” Fall 2011-Spring 2012.
Zuyang Cao and Jihing Zou, “Ultrasound Data Communications,” Spring 2012.
Ying Teng, “Efficient Controllers for Switched Capacitor DC/DC converters,” Fall 2011.
Jianxun Zhu, “Designing an Ultra-Wideband Interface for EnHANTs,” Spring 2011.
Yuan Zhou and Chengrui Le, “Opamp Design with Organic Transistors,” Spring 2010-Fall 2010 (with Prof. Kymissis)
Dinesh M.B. Maheswaran, “Design of a 300Msps 4bit ADC,” Fall 2009-Fall 2010.
Sudhir Nagaraj, “Ultra-low Voltage A/D Converter Testing,” Spring 2010.
William Lee, “Multi Source Sound Experiment Setup,” Fall 2009 (with Prof. Kymissis).
Chunwei Hsu, “A 10GHz DDFS-PLL in 65nm CMOS,” Fall 2009-Spring 2010.
Frank Fang, “Switched capacitor power converter design,” Fall 2009-Spring 2010.
Mingdong Hu, “Opamp Design with Organic Transistors,” Summer 2009-Fall 2009 (with Prof. Kymissis).
Ankita Nayak, “FPGA Implementation Of Digital Calibration For IIP3 Enhancement,” Fall 2009.
Tim Hyuk, “Mismatch modeling of MOM capacitors,” Spring 2009-Fall 2009.
Jayanth Narasimhan Kuppambatti, “Wireless Sensor Node Design,” Fall 2008-Spring 2009.
Ryan Roberts and Robin Stevenson, “Device Variation Characterization [90nm],” Spring 2008-Fall 2008.
Navin Harwalkar, “Ultra Low Voltage, High Gain OTAs,” Fall 2007-Fall 2008.
Bingrui Yang and Xin Li, “Advanced Sound Processing,” Fall 2007-Fall 2008 (with Prof. Kymissis)
B.J. Lim, “Ultra Low Voltage Voltage Controlled Oscillator Design with High Power Supply Rejection,” Spring 2008.
Jonathan Tompson, Adam Dolin, “Wireless Testing of Integrated Circuits,” Fall 2006-Fall 2007.
Christos Vezyrtzis, “Low Voltage Reference Circuits,” Fall 2006-Fall 2007.
H.S. Lin, “Device Variation Characterization,” Summer 2006-Fall 2006.
Chia-Yin Chen, “Automatic Measurement Setup for Device Variation Characterization,” Spring 2006-Fall 2006.
Tekalegn Habta Lemji, “Single-ended to Differential Signal Converter,” Fall 2006.
Kuo-Chih Feng, Jin Wook Son, Inanc Meric, “Wireless Testing of Integrated Circuits,” Spring 2006.
Ajay Balankutty, Tai-Chiao Chih, “Device Variation Characterization,” Summer 2005-Fall 2005.
Vasilios Giannopoulos, “Design of Low Voltage Programmable Gain Amplifiers,” Spring 2005.
Mustapha Abdulai, “Design of Low Voltage OTAs,” Spring 2005.
Steven Battle, Allen Chen, “Novel Frequency Divider Integrated Circuit,” Fall 2004.
Cheng-Feng Chu, “Design of a Quadrature LC Oscillator,” Fall 2004.
Zelalem Asmamaw, “Design of operational amplifiers for the time encoding machine,” Summer 2004.
Andrew Han, “RF powered circuits,” Summer 2004.
Han-Yun Chang, “Novel Frequency Divider Integrated Circuit,” Fall 2003-Spring 2004.
Theodore Kengne, “CMOS characterization for ultra-low voltage circuit design,” Fall 2003.
Chia-Hung Chen, Shi-Gun Pan, “Electrocardiogram Measurements,” Fall 2002.
Chao-Chieh Hsu, Shao-Hsune Lee, “Short Range Wireless Data Transmission,” Fall 2002.

BS Project Students

Wendy Fernandez (City University of New York, EE), “Enhancing Voice Localization by Shaping Audio Features Using Filters and Time-Delay Estimation” Fall 2017 – Spring 2018
Louisa Sainz de la Maza, “Ultra-Low-Power Wireless Communications,” Fall 2017 – Spring 2018
Christopher Kunkel, “Sound Processing for Localization,” Spring 2016.
Christopher Kunkel, “Automatic Spectrum Occupancy Measurements,” Spring 2015, Summer 2014 (NSF/REU), Fall 2015.
Jeffrey Yuan, “Automating Spectrum Occupancy Measurements.” Spring 2013, Summer 2013 (NSF/REU), Summer 2014 (NSF/REU), Fall 2014, Spring 2015, Summer 2015 (NSF/REU), Fall 2015.
Zoga Borova, “Energy Harvesting Module for EnHANTs,” Summer 2013 (B.S. at Cooper Union in NYC)
Allison Duh, “Spectrum Occupancy Measurements,” Fall 2012 – Spring 2013.
Felipe de Oliveira (Stevens Institute of Technology), “FPGA implementation of a UWB pulse radio MAC,” Summer 2012.
Jiasi Chen, “Interfacing Mica2 Motes with an UWB Receiver and Transmitter,” Fall 2009-Summer 2010.
David Blumenfeld (UCLA), “Interfacing Ultrasound Wake-up Receivers to Mica2 Motes,” REU project, Summer 2010.
Deep Shrestha, “An Automated System That Measures Energy Harvested By A Solar Cell Under Different Light Conditions,” Summer 2009-Spring 2010.
Ben Waters, “Inductive power transfer,” Spring 2009-Fall 2009.
Jiasi Chen, “Light energy harvesting measurements,” Spring 2009.
Ed Chiang, “CMOS characterization for ultra-low voltage circuit design,” Spring 2005-Fall 2006.
Hector Hung, Vladislav Adzic, “Implementation of simulation scripts for Monte-Carlo Simulation of device parameter variations and mismatch,” Summer 2005–Spring 2006.
Vivek Rajeswaran, “CMOS characterization for ultra-low voltage circuit design,” Fall 2005-Spring 2006.
Tawfiq Musah, “Voltage references operating from a low power supply,” Summer 2004-Spring 2005.
Sebastian Sorgenfrei, “Design and simulation of compact, on-chip LC resonators,” Spring 2004- Fall 2004.
Chia-Ching (Peter) Chen, “Implementation of parametrized layout cells for analog IC design,” Summer 2004.
Eric Chang, Waclaw Aleksander Godycki, “Novel Biasing for LC oscillators,” Summer 2003.

Former VISITING SCHOLARS

Debajit Basak received his B.Tech. degree in electronics & communication engineering from National Institute of Technology, Silchar, India, in 2012. From 2012 to 2014, he was an assistant project engineer with the VLSI design laboratory, IIT Guwahati (India). He is currently working towards the Ph.D. degree at Chinese University of Hong Kong.
His research interests include low-power circuits & C.T. delta-sigma modulators. For FA'17 semester, he is a visiting scholar.

Yang Zhang received his B.S. degree in instrument and measurement from Shandong University, China, in 2015. He is currently pursuing his Ph.D. degree in electronic engineering at the Chinese University of Hong Kong.
His research interests include low-power low-voltage analog & mixed-signal integrated circuits. For SP'19 semester, he is a visiting scholar.

Erjia Shi, Ph.D. Candidate, City University of Hong Kong; Visiting Scientist, March - May 2017.
Jiangpeng Wang, Ph.D. Candidate, City University of Hong Kong; Visiting Scientist, March - May 2017.
Allessandro Bertollini, M.S. student (Thesis Research Project), University of Brescia, January - June 2016.
Domenico Nicita, M.S. student (Thesis Research Project), Politecnico di Torino, August 2014 - Feb.2015.
Marco Daldoss, M.S. student (Thesis Research Project), University of Brescia, Visiting Scientist, Sept. 2013 - Feb. 2014; July-August 2014.
Chi-Tung Ko, Ph.D. Candidate, City University of Hong Kong; Visiting Scientist, March-April 2012.
M. Crepaldi, Ph. D. Candidate, VLSI Research Laboratory, Dipartimento di Elettronica, Politecnico di Torino; Visiting Scientist, July 2008-Dec. 2009.
C. Li, Institute of Micro-electronics, Peking University, Bejing, China; Ph.D. exchange student, Feb. 2008-Feb. 2009.
Prof. J. Fernandez, Associate Professor, Technical University of Lisbon (Instituto Superior Técnico), Portugal; Visiting Scientist, March-Sept 2008.
Prof. K. P. Pun, Assistant Professor, City University of Hong Kong; Visiting Scientist, May-July 2004.

Group Pictures