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Ka Fai Un
Ka Fai Un
Assistant Professor, University of Macau
Verified email at um.edu.mo
Title
Cited by
Cited by
Year
An FPGA-Based Energy-Efficient Reconfigurable Convolutional Neural Network Accelerator for Object Recognition Applications
J Li, KF Un, WH Yu, PI Mak, RP Martins
IEEE Transactions on Circuits and Systems II: Express Briefs 68 (9), 3143-3147, 2021
442021
Overview of recent development on wireless sensing circuits and systems for healthcare and biomedical applications
C Li, KF Un, P Mak, Y Chen, JM Muñoz-Ferreras, Z Yang, ...
IEEE Journal on Emerging and Selected Topics in Circuits and Systems 8 (2 …, 2018
442018
Analysis and design of open-loop multiphase local-oscillator generator for wireless applications
KF Un, PI Mak, RP Martins
IEEE Transactions on Circuits and Systems I: Regular Papers 57 (5), 970-981, 2010
342010
A 0.12-mm2 1.2-to-2.4-mW 1.3-to-2.65-GHz Fractional-N Bang-Bang Digital PLL With 8- s Settling Time for Multi-ISM-Band ULP Radios
KF Un, G Qi, J Yin, S Yang, S Yu, CI Ieong, PI Mak, RP Martins
IEEE Transactions on Circuits and Systems I: Regular Papers 66 (9), 3307-3316, 2019
192019
A nonrecursive digital calibration technique for joint elimination of transmitter and receiver I/Q imbalances with minimized add-on hardware
WH Yu, CF Cheang, PI Mak, WF Cheng, KF Un, UW Lok, RP Martins
IEEE Transactions on Circuits and Systems II: Express Briefs 60 (8), 462-466, 2013
182013
A combinatorial impairment-compensation digital predistorter for a sub-GHz IEEE 802.11 af-WLAN CMOS transmitter covering a 10x-wide RF bandwidth
CF Cheang, KF Un, WH Yu, PI Mak, RP Martins
IEEE Transactions on Circuits and Systems I: Regular Papers 62 (4), 1025-1032, 2015
162015
An FPGA-based energy-efficient reconfigurable depthwise separable convolution accelerator for image recognition
L Xuan, KF Un, CS Lam, RP Martins
IEEE Transactions on Circuits and Systems II: Express Briefs 69 (10), 4003-4007, 2022
152022
An FPGA-Based Transformer Accelerator Using Output Block Stationary Dataflow for Object Recognition Applications
Z Zhao, R Cao, KF Un, WH Yu, PI Mak, RP Martins
IEEE Transactions on Circuits and Systems II: Express Briefs 70 (1), 281-285, 2023
132023
A sub-GHz wireless transmitter utilizing a multi-class-linearized PA and time-domain wideband-auto I/Q-loft calibration for IEEE 802.11 af WLAN
KF Un, WH Yu, CF Cheang, G Qi, PI Mak, RP Martins
IEEE Transactions on Microwave Theory and Techniques 63 (10), 3228-3241, 2015
112015
A 53-to-75-mW, 59.3-dB HRR, TV-band white-space transmitter using a low-frequency reference LO in 65-nm CMOS
KF Un, PI Mak, RP Martins
IEEE Journal of Solid-State Circuits 48 (9), 2078-2089, 2013
112013
A 108nW 0.8mm2 Analog Voice Activity Detector (VAD) Featuring a Time-Domain CNN as a Programmable Feature Extractor and a Sparsity-Aware Computational …
F Chen, KF Un, WH Yu, PI Mak, RP Martins
2022 IEEE International Solid-State Circuits Conference (ISSCC) 65, 1-3, 2022
102022
A highly-linear ultra-wideband balun-LNA for cognitive radios
WF Cheng, KF Un, PI Mak, RP Martins
2011 IEEE EUROCON-International Conference on Computer as a Tool, 1-4, 2011
72011
SC biquad filter with hybrid utilization of opamp and comparator-based circuit
MA Martins, KF Un, PI Mak, RP Martins
Proceedings of 2010 IEEE International Symposium on Circuits and Systems …, 2010
72010
Revisiting the Frontiers of Analog and Mixed-Signal Integrated Circuits Architectures and Techniques towards the future Internet of Everything (IoE) Applications
RP Martins, PI Mak, SW Sin, MK Law, Y Zhu, Y Lu, J Yin, CH Chan, ...
Foundations and Trends® in Integrated Circuits and Systems 1 (2-3), 72-216, 2021
62021
A 47nW Mixed-Signal Voice Activity Detector (VAD) Featuring a Non-Volatile Capacitor-ROM, a Short-Time CNN Feature Extractor and an RNN Classifier
J Lin, KF Un, PI Yu, Wei-Han, Mak, RP Martins
2023 IEEE International Solid- State Circuits Conference (ISSCC), 214-215, 2023
52023
A 50.4 GOPs/W FPGA-Based MobileNetV2 Accelerator using the Double-Layer MAC and DSP Efficiency Enhancement
RPM Jixuan Li, Jiabao Chen, Ka-Fai Un, Wei-Han Yu, Pui-In Mak
2021, IEEE Asian Solid-State Circuits Conference (A-SSCC), 1-3, 2021
52021
Design Considerations of the Interpolative Digital Transmitter for Quantization Noise and Replicas Rejection
KF Un, F Zhang, PI Mak, RP Martins, A Zhu, RB Staszewski
IEEE Transactions on Circuits and Systems II: Express Briefs 67 (1), 37-41, 2020
52020
An open-loop octave-phase local-oscillator generator with high-precision correlated phases for VHF/UHF mobile-TV tuners
KF Un, PI Mak, RP Martins
2009 IEEE International Symposium on Circuits and Systems, 433-436, 2009
42009
A 0.05-2.91-nJ/Decision Keyword-Spotting (KWS) Chip Featuring an Always-Retention 5T-SRAM in 28-nm CMOS
F Tan, WH Yu, KF Un, RP Martins, PI Mak
IEEE Journal of Solid-State Circuits 59 (2), 2024
32024
A 108-nW 0.8-mm2 Analog Voice Activity Detector Featuring a Time-Domain CNN With Sparsity-Aware Computation and Sparsified Quantization in 28-nm CMOS
F Chen, KF Un, WH Yu, PI Mak, RP Martins
IEEE Journal of Solid-State Circuits 57 (11), 3288-3297, 2022
32022
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