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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
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
342018
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
272010
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
242021
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
172013
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
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
112019
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 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
92015
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
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
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
42021
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
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
32022
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, 2022
22022
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
22022
A wideband multi-stage inverter-based driver amplifier for IEEE 802.22 WRAN transmitters
GZ Qi, KF Un, WH Yu, PI Mak, RP Martins
Fifth Asia Symposium on Quality Electronic Design (ASQED 2013), 6-9, 2013
22013
A 0.7–2.5 GHz, 61% EIRP System Efficiency, Four-Element MIMO TX System Exploiting Integrated Power-Relaxed Power Amplifiers and an Analog Spatial De-Interleaver
WH Yu, KF Un, PI Mak, RP Martins
IEEE Transactions on Circuits and Systems I: Regular Papers 65 (1), 14-25, 2017
12017
A DC-offset-compensated, CT/DT hybrid filter with process-insensitive cutoff and low in-band group-delay variation for WLAN receivers
KF Un, PI Mak, RP Martins
APCCAS 2008-2008 IEEE Asia Pacific Conference on Circuits and Systems, 1360-1363, 2008
12008
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Articles 1–20