Abstract:
This article presents a 915-MHz interference-tolerant receiver (RX) with a shared wireless local oscillator (LO) and an envelope-tracking (ET) mixer for low-power Interne...Show MoreMetadata
Abstract:
This article presents a 915-MHz interference-tolerant receiver (RX) with a shared wireless local oscillator (LO) and an envelope-tracking (ET) mixer for low-power Internet-of-Things (IoT) networks. For applications featuring a large number of RXs, the deployment of a shared wireless LO can enhance the energy efficiency of the system. The proposed ET mixer retrieves phase-following (PF) LO pulses from the wireless LO, aligning them, respectively, with the peak and valley of the radio frequency (RF) input signal. This allows the RX to track the target peak and valley envelopes of the RF input signal, improving mixer gain and conversion quality (Q). Moreover, eliminating the integrated LO conserves system power and reduces area. The RX also employs intermediate-frequency (IF) calibration to derive an adaptive IF1 LO based on the uncertain frequency of the wireless LO, thus creating a known IF2 with a narrow bandwidth to enhance sensitivity, interference tolerance, and channel selectivity. Fabricated in a 65-nm CMOS process, the RX achieves a sensitivity of -104 dBm with a -50-dBm wireless LO, while occupying 0.2-mm2 active area and consuming 225~{\mu } W at a 10-kb/s data rate. The achieved RX figure-of-merit (FOM) is 180 dB. The sensitivity loss is within 10 dB with the wireless LO power ranging from -69 to -30 dBm. With the -50-dBm wireless LO, the RX exhibits 44- and 32-dB tolerances to 100-kb/s and 5-Mb/s on-off-keying (OOK) interference with 5-MHz offset.
Published in: IEEE Journal of Solid-State Circuits ( Volume: 60, Issue: 3, March 2025)
Funding Agency:
State Key Laboratory of ASIC and Systems and the Institute of Brain-Inspired Circuits and Systems, Fudan University, Shanghai, China
Heyu Ren (Member, IEEE) received the B.E. and M.S. degrees in electronic science and technology from Tiangong University, Tianjin, China, in 2016 and 2019, respectively, and the Ph.D. degree in microelectronics from Fudan University, Shanghai, China, in 2024.
His current research interests include the ultra-low-power interference-robust radio, energy-efficient mixer for high-performance down conversion, and highly duty-cyc...Show More
Heyu Ren (Member, IEEE) received the B.E. and M.S. degrees in electronic science and technology from Tiangong University, Tianjin, China, in 2016 and 2019, respectively, and the Ph.D. degree in microelectronics from Fudan University, Shanghai, China, in 2024.
His current research interests include the ultra-low-power interference-robust radio, energy-efficient mixer for high-performance down conversion, and highly duty-cyc...View more
School of Integrated Circuits, East China Normal University, Shanghai, China
Liangjian Lyu (Member, IEEE) received the B.Sc. degree in physics from Nanjing University, Nanjing, China, in 2010, and the M.Sc. and Ph.D. degrees in microelectronics from Fudan University, Shanghai, China, in 2013 and 2020, respectively.
Since 2021, he has been with East China Normal University, Shanghai, where he is currently an Associate Professor. His research interests include analog and mixed-signal integrated circu...Show More
Liangjian Lyu (Member, IEEE) received the B.Sc. degree in physics from Nanjing University, Nanjing, China, in 2010, and the M.Sc. and Ph.D. degrees in microelectronics from Fudan University, Shanghai, China, in 2013 and 2020, respectively.
Since 2021, he has been with East China Normal University, Shanghai, where he is currently an Associate Professor. His research interests include analog and mixed-signal integrated circu...View more
State Key Laboratory of ASIC and Systems and the Institute of Brain-Inspired Circuits and Systems, Fudan University, Shanghai, China
Binbin Chen (Graduate Student Member, IEEE) received the B.E. degree in optoelectronics from the Huazhong University of Science and Technology, Wuhan, China, in 2021. She is currently pursuing the Ph.D. degree in microelectronics with Fudan University, Shanghai, China.
Her current research interests include interferer-robust ultralow-power radio.
Binbin Chen (Graduate Student Member, IEEE) received the B.E. degree in optoelectronics from the Huazhong University of Science and Technology, Wuhan, China, in 2021. She is currently pursuing the Ph.D. degree in microelectronics with Fudan University, Shanghai, China.
Her current research interests include interferer-robust ultralow-power radio.View more
State Key Laboratory of ASIC and Systems and the Institute of Brain-Inspired Circuits and Systems, Fudan University, Shanghai, China
Wenjun Gong (Graduate Student Member, IEEE) received the B.S. degree from the Huazhong University of Science and Technology, Wuhan, China, in 2019, and the M.S. degree from Fudan University, Shanghai, China, in 2021, where he is currently pursuing the Ph.D. degree in integrated circuits and systems design.
His research interests include energy harvesting, power management ICs, and ultra-low-power receivers.
Wenjun Gong (Graduate Student Member, IEEE) received the B.S. degree from the Huazhong University of Science and Technology, Wuhan, China, in 2019, and the M.S. degree from Fudan University, Shanghai, China, in 2021, where he is currently pursuing the Ph.D. degree in integrated circuits and systems design.
His research interests include energy harvesting, power management ICs, and ultra-low-power receivers.View more
School of Integrated Circuits, East China Normal University, Shanghai, China
Xing Wu (Senior Member, IEEE) received the bachelor’s degree in electrical engineering from Xi’an Jiaotong University, Xi’an, China, in 2008, and the Ph.D. degree from Nanyang Technological University, Singapore, in 2012.
She is currently a Professor with East China Normal University, Shanghai, China. Her research interest is on electronic devices and design.
Xing Wu (Senior Member, IEEE) received the bachelor’s degree in electrical engineering from Xi’an Jiaotong University, Xi’an, China, in 2008, and the Ph.D. degree from Nanyang Technological University, Singapore, in 2012.
She is currently a Professor with East China Normal University, Shanghai, China. Her research interest is on electronic devices and design.View more
Department of Electrical and Computer Engineering, University of Washington, Seattle, WA, USA
C.-J. Richard Shi (Fellow, IEEE) joined the University of Washington, Seattle, WA, USA, in 1998, where he has been a Professor of electrical engineering since 2004. He worked in the area of computer-aided design of mixed-signal integrated circuits. His research interests include energy-efficient circuit design for sensing, computing, learning, and communication.
Dr. Shi received several awards for his research including Do...Show More
C.-J. Richard Shi (Fellow, IEEE) joined the University of Washington, Seattle, WA, USA, in 1998, where he has been a Professor of electrical engineering since 2004. He worked in the area of computer-aided design of mixed-signal integrated circuits. His research interests include energy-efficient circuit design for sensing, computing, learning, and communication.
Dr. Shi received several awards for his research including Do...View more
Contents State Key Laboratory of ASIC and Systems and the Institute of Brain-Inspired Circuits and Systems, Fudan University, Shanghai, China
Heyu Ren (Member, IEEE) received the B.E. and M.S. degrees in electronic science and technology from Tiangong University, Tianjin, China, in 2016 and 2019, respectively, and the Ph.D. degree in microelectronics from Fudan University, Shanghai, China, in 2024.
His current research interests include the ultra-low-power interference-robust radio, energy-efficient mixer for high-performance down conversion, and highly duty-cycled techniques for the wake-up radio used in the Internet-of-Things communications.
Heyu Ren (Member, IEEE) received the B.E. and M.S. degrees in electronic science and technology from Tiangong University, Tianjin, China, in 2016 and 2019, respectively, and the Ph.D. degree in microelectronics from Fudan University, Shanghai, China, in 2024.
His current research interests include the ultra-low-power interference-robust radio, energy-efficient mixer for high-performance down conversion, and highly duty-cycled techniques for the wake-up radio used in the Internet-of-Things communications.View more
School of Integrated Circuits, East China Normal University, Shanghai, China
Liangjian Lyu (Member, IEEE) received the B.Sc. degree in physics from Nanjing University, Nanjing, China, in 2010, and the M.Sc. and Ph.D. degrees in microelectronics from Fudan University, Shanghai, China, in 2013 and 2020, respectively.
Since 2021, he has been with East China Normal University, Shanghai, where he is currently an Associate Professor. His research interests include analog and mixed-signal integrated circuit design for low-power biomedical applications.
Dr. Lyu received the Best Paper Award of the BioCAS Track and the Best Student Paper Award from the International Symposium on Circuits and Systems (ISCAS), in 2019 and 2020, respectively.
Liangjian Lyu (Member, IEEE) received the B.Sc. degree in physics from Nanjing University, Nanjing, China, in 2010, and the M.Sc. and Ph.D. degrees in microelectronics from Fudan University, Shanghai, China, in 2013 and 2020, respectively.
Since 2021, he has been with East China Normal University, Shanghai, where he is currently an Associate Professor. His research interests include analog and mixed-signal integrated circuit design for low-power biomedical applications.
Dr. Lyu received the Best Paper Award of the BioCAS Track and the Best Student Paper Award from the International Symposium on Circuits and Systems (ISCAS), in 2019 and 2020, respectively.View more
State Key Laboratory of ASIC and Systems and the Institute of Brain-Inspired Circuits and Systems, Fudan University, Shanghai, China
Binbin Chen (Graduate Student Member, IEEE) received the B.E. degree in optoelectronics from the Huazhong University of Science and Technology, Wuhan, China, in 2021. She is currently pursuing the Ph.D. degree in microelectronics with Fudan University, Shanghai, China.
Her current research interests include interferer-robust ultralow-power radio.
Binbin Chen (Graduate Student Member, IEEE) received the B.E. degree in optoelectronics from the Huazhong University of Science and Technology, Wuhan, China, in 2021. She is currently pursuing the Ph.D. degree in microelectronics with Fudan University, Shanghai, China.
Her current research interests include interferer-robust ultralow-power radio.View more
State Key Laboratory of ASIC and Systems and the Institute of Brain-Inspired Circuits and Systems, Fudan University, Shanghai, China
Wenjun Gong (Graduate Student Member, IEEE) received the B.S. degree from the Huazhong University of Science and Technology, Wuhan, China, in 2019, and the M.S. degree from Fudan University, Shanghai, China, in 2021, where he is currently pursuing the Ph.D. degree in integrated circuits and systems design.
His research interests include energy harvesting, power management ICs, and ultra-low-power receivers.
Wenjun Gong (Graduate Student Member, IEEE) received the B.S. degree from the Huazhong University of Science and Technology, Wuhan, China, in 2019, and the M.S. degree from Fudan University, Shanghai, China, in 2021, where he is currently pursuing the Ph.D. degree in integrated circuits and systems design.
His research interests include energy harvesting, power management ICs, and ultra-low-power receivers.View more
School of Integrated Circuits, East China Normal University, Shanghai, China
Xing Wu (Senior Member, IEEE) received the bachelor’s degree in electrical engineering from Xi’an Jiaotong University, Xi’an, China, in 2008, and the Ph.D. degree from Nanyang Technological University, Singapore, in 2012.
She is currently a Professor with East China Normal University, Shanghai, China. Her research interest is on electronic devices and design.
Xing Wu (Senior Member, IEEE) received the bachelor’s degree in electrical engineering from Xi’an Jiaotong University, Xi’an, China, in 2008, and the Ph.D. degree from Nanyang Technological University, Singapore, in 2012.
She is currently a Professor with East China Normal University, Shanghai, China. Her research interest is on electronic devices and design.View more
Department of Electrical and Computer Engineering, University of Washington, Seattle, WA, USA
C.-J. Richard Shi (Fellow, IEEE) joined the University of Washington, Seattle, WA, USA, in 1998, where he has been a Professor of electrical engineering since 2004. He worked in the area of computer-aided design of mixed-signal integrated circuits. His research interests include energy-efficient circuit design for sensing, computing, learning, and communication.
Dr. Shi received several awards for his research including Donald O. Pederson Best IEEE Transactions on CAD Paper Award, Best Paper Awards from the IEEE/ACM Design Automation Conference, the IEEE VLSI Test Symposium, IEEE International Symposium on Circuits and Systems, and the SRC Technical Conference, and the NSF CAREER Award. He has served ten years as an Associate Editor for IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, and twice as an Associate Editor and once as a Guest Editor for IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing as well as Transactions Briefs.
C.-J. Richard Shi (Fellow, IEEE) joined the University of Washington, Seattle, WA, USA, in 1998, where he has been a Professor of electrical engineering since 2004. He worked in the area of computer-aided design of mixed-signal integrated circuits. His research interests include energy-efficient circuit design for sensing, computing, learning, and communication.
Dr. Shi received several awards for his research including Donald O. Pederson Best IEEE Transactions on CAD Paper Award, Best Paper Awards from the IEEE/ACM Design Automation Conference, the IEEE VLSI Test Symposium, IEEE International Symposium on Circuits and Systems, and the SRC Technical Conference, and the NSF CAREER Award. He has served ten years as an Associate Editor for IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, and twice as an Associate Editor and once as a Guest Editor for IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing as well as Transactions Briefs.View more
