Ka Fai Un
AuthID: R-00F-8W5
1
TITLE: A 0.05-mm(2) 2.91-nJ/Decision Keyword-Spotting (KWS) Chip Featuring an Always-Retention 5T-SRAM in 28-nm CMOS
AUTHORS: Tan, Fei; Yu, Wei Han; Un, Ka Fai; Martins, Rui P. P.; Mak, Pui In;
PUBLISHED: 2023, SOURCE: IEEE JOURNAL OF SOLID-STATE CIRCUITS
AUTHORS: Tan, Fei; Yu, Wei Han; Un, Ka Fai; Martins, Rui P. P.; Mak, Pui In;
PUBLISHED: 2023, SOURCE: IEEE JOURNAL OF SOLID-STATE CIRCUITS
INDEXED IN: 
WOS
WOS2
TITLE: A 108nW 0.8mm2Analog Voice Activity Detector (VAD) Featuring a Time-Domain CNN as a Programmable Feature Extractor and a Sparsity-Aware Computational Scheme in 28nm CMOS
AUTHORS: Chen, F; Un, KF; Yu, WH; Mak, PI; Martins, RP;
PUBLISHED: 2022, SOURCE: 2022 IEEE International Solid-State Circuits Conference, ISSCC 2022 in Digest of Technical Papers - IEEE International Solid-State Circuits Conference, VOLUME: 2022-February
AUTHORS: Chen, F; Un, KF; Yu, WH; Mak, PI; Martins, RP;
PUBLISHED: 2022, SOURCE: 2022 IEEE International Solid-State Circuits Conference, ISSCC 2022 in Digest of Technical Papers - IEEE International Solid-State Circuits Conference, VOLUME: 2022-February
INDEXED IN: 
Scopus
Scopus3
TITLE: A 108-nW 0.8-mm(2) Analog Voice Activity Detector Featuring a Time-Domain CNN With Sparsity-Aware Computation and Sparsified Quantization in 28-nm CMOS
AUTHORS: Chen, Feifei; Un, Ka Fai; Yu, Wei Han; Mak, Pui In; Martins, Rui P.;
PUBLISHED: 2022, SOURCE: IEEE JOURNAL OF SOLID-STATE CIRCUITS
AUTHORS: Chen, Feifei; Un, Ka Fai; Yu, Wei Han; Mak, Pui In; Martins, Rui P.;
PUBLISHED: 2022, SOURCE: IEEE JOURNAL OF SOLID-STATE CIRCUITS
INDEXED IN: WOS
WOS4
TITLE: Time-domain I/Q-LOFT compensator using a simple envelope detector for a sub-GHz IEEE 802.11af WLAN transmitter
AUTHORS: Cheang, CF; Un, KF; Mak, PI; Martins, RP;
PUBLISHED: 2016, SOURCE: 21st Asia and South Pacific Design Automation Conference, ASP-DAC 2016 in Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC, VOLUME: 25-28-January-2016
AUTHORS: Cheang, CF; Un, KF; Mak, PI; Martins, RP;
PUBLISHED: 2016, SOURCE: 21st Asia and South Pacific Design Automation Conference, ASP-DAC 2016 in Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC, VOLUME: 25-28-January-2016
INDEXED IN: Scopus
Scopus5
TITLE: A Combinatorial Impairment-Compensation Digital Predistorter for a Sub-GHz IEEE 802.11af-WLAN CMOS Transmitter Covering a 10x-Wide RF Bandwidth
AUTHORS: Chak Fong Cheang; Ka Fai Un; Wei Han Yu; Pui In Mak; Rui P Martins;
PUBLISHED: 2015, SOURCE: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, VOLUME: 62, ISSUE: 4
AUTHORS: Chak Fong Cheang; Ka Fai Un; Wei Han Yu; Pui In Mak; Rui P Martins;
PUBLISHED: 2015, SOURCE: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, VOLUME: 62, ISSUE: 4
6
TITLE: A Sub-GHz Wireless Transmitter Utilizing a Multi-Class-Linearized PA and Time-Domain Wideband-Auto I/Q-LOFT Calibration for IEEE 802.11af WLAN
AUTHORS: Ka Fai Un; Wei Han Yu; Chak Fong Cheang; Gengzhen Z Qi; Pui In Mak; Rui P Martins;
PUBLISHED: 2015, SOURCE: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOLUME: 63, ISSUE: 10
AUTHORS: Ka Fai Un; Wei Han Yu; Chak Fong Cheang; Gengzhen Z Qi; Pui In Mak; Rui P Martins;
PUBLISHED: 2015, SOURCE: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOLUME: 63, ISSUE: 10
7
TITLE: A 53-to-75-mW, 59.3-dB HRR, TV-Band White-Space Transmitter Using a Low-Frequency Reference LO in 65-nm CMOS
AUTHORS: Ka Fai Un; Pui In Mak; Rui P Martins;
PUBLISHED: 2013, SOURCE: IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOLUME: 48, ISSUE: 9
AUTHORS: Ka Fai Un; Pui In Mak; Rui P Martins;
PUBLISHED: 2013, SOURCE: IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOLUME: 48, ISSUE: 9
8
TITLE: A Nonrecursive Digital Calibration Technique for Joint Elimination of Transmitter and Receiver I/Q Imbalances With Minimized Add-On Hardware
AUTHORS: Wei Han Yu; Chak Fong Cheang; Pui In Mak; Weng Fai Cheng; Ka Fai Un; Wai W Lok; Rui P Martins;
PUBLISHED: 2013, SOURCE: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, VOLUME: 60, ISSUE: 8
AUTHORS: Wei Han Yu; Chak Fong Cheang; Pui In Mak; Weng Fai Cheng; Ka Fai Un; Wai W Lok; Rui P Martins;
PUBLISHED: 2013, SOURCE: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, VOLUME: 60, ISSUE: 8
9
TITLE: Analysis and Design of Open-Loop Multiphase Local-Oscillator Generator for Wireless Applications
AUTHORS: Ka Fai Un; Pui In Mak; Rui P Martins;
PUBLISHED: 2010, SOURCE: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, VOLUME: 57, ISSUE: 5
AUTHORS: Ka Fai Un; Pui In Mak; Rui P Martins;
PUBLISHED: 2010, SOURCE: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, VOLUME: 57, ISSUE: 5
10
TITLE: SC Biquad Filter with Hybrid Utilization of OpAmp and Comparator-Based Circuit
AUTHORS: Miguel A Martins; Ka Fai Un; Pui In Mak; Martins, RP;
PUBLISHED: 2010, SOURCE: International Symposium on Circuits and Systems Nano-Bio Circuit Fabrics and Systems (ISCAS 2010) in 2010 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS
AUTHORS: Miguel A Martins; Ka Fai Un; Pui In Mak; Martins, RP;
PUBLISHED: 2010, SOURCE: International Symposium on Circuits and Systems Nano-Bio Circuit Fabrics and Systems (ISCAS 2010) in 2010 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS
