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Design Considerations of the Interpolative Digital Transmitter for Quantization Noise and Replicas Rejection Journal article
IEEE Transactions on Circuits and Systems II: Express Briefs, 2020,Volume: 67,Issue: 1,Page: 37-41
Authors:  Un,Ka Fai;  Zhang,Feifei;  Mak,Pui In;  Martins,Rui P.;  Zhu,Anding;  Staszewski,Robert Bogdan
Favorite |  | TC[WOS]:2 TC[Scopus]:2 | Submit date:2021/03/09
digital baseband  Digital transmitter (DTX)  linear interpolation  modulation  noise filtering  out-of-band noise  quantization noise  replicas  
A 0.12-mm2 1.2-to-2.4-mW 1.3-to-2.65-GHz Fractional-N bang-bang digital PLL with 8-μs settling time for multi-ISM-Band ULP radios Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2019,Volume: 66,Issue: 9,Page: 3307-3316
Authors:  Un,Ka Fai;  Qi,Gengzhen;  Yin,Jun;  Yang,Shiheng;  Yu,Shupeng;  Ieong,Chio In;  Mak,Pui In;  Martins,Rui P.
Favorite |  | TC[WOS]:2 TC[Scopus]:3 | Submit date:2021/03/09
bang-bang  Digital phase-locked loop (DPLL)  digital-to-time converter (DTC)  gain calibration  ring VCO  ultra-fast settling  ultra-low-power (ULP)  voltage-controlled oscillator (VCO)  
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 Journal article
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2018,Volume: 65,Issue: 1,Page: 14-25
Authors:  Yu, Wei-Han;  Un, Ka-Fai;  Mak, Pui-In;  Martins, Rui P.
Favorite |  | TC[WOS]:1 TC[Scopus]:1 | Submit date:2018/10/30
Antenna Array  Beamforming  Cmos  Diversity Gain  Error-vector Magnitude (Evm)  Fading Channel  Mobile  Multiple-input Multiple-output (Mimo)  Mimo Decoder  Matching Network (Mn)  Pulse-shaping Filter (Psf)  Power Amplifier (Pa)  Transmitter (Tx)  Signal-to-noise Ratio (Snr)  Wideband  
Reception performance enhancement of capacitive micromachined ultrasonic transducers via modified membrane structures Conference paper
IFMBE Proceedings, Singapore, SINGAPORE, DEC 07-10, 2016
Authors:  Jiang X.;  Yu Y.;  Wang J.;  Liu X.;  Kin Che U.;  Pun S.H.;  Vai M.I.;  Un Mak P.
Favorite |  | TC[WOS]:0 TC[Scopus]:0 | Submit date:2019/02/14
Cmut Receiver  Sensitivity Enhancement  Slotted Membrane And Corrugated Membrane  
An open-loop multiphase local-oscillator generation technique Book chapter
出自: Low Power Emerging Wireless Technologies, 2016, 页码: 297-312
Authors:  Un,Kai Fai;  Mak,Pui In;  Martins,Rui P.
Favorite |  | TC[WOS]:0 TC[Scopus]:0 | Submit date:2021/03/09
Time-domain I/Q-LOFT compensator using a simple envelope detector for a sub-GHz IEEE 802.11af WLAN transmitter Conference paper
2016 21st Asia and South Pacific Design Automation Conference (ASP-DAC), Macao, PEOPLES R CHINA, JAN 25-28, 2016
Authors:  Chak-Fong Cheang;  Ka-Fai Un;  Pui-In Mak;  Rui P. Martins
Favorite |  | TC[WOS]:0 TC[Scopus]:0 | Submit date:2019/02/11
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 Journal article
IEEE Transactions on Microwave Theory and Techniques, 2015,Volume: 63,Issue: 10,Page: 3228-3241
Authors:  Ka-Fai Un;  Wei-Han Yu;  Chak-Fong Cheang;  Gengzhen Qi;  Pui-In Mak;  Rui P. Martins
Favorite |  | TC[WOS]:6 TC[Scopus]:0 | Submit date:2019/02/11
Adjacent Channel Leakage Ratio (Aclr)  Cmos  Digital Calibration  Gm-c Low-pass Filter  Harmonic Rejection Mixer (Hrm)  Harmonic Rejection Ratio (Hrr)  Ieee 802.11af  Image Rejection Ratio (Irr)  In-phase/quadrature (I/q) Imbalance  Lo Feedthrough (Loft)  Lo-leakage Rejection Ratio (Lrr)  Local Oscillator (Lo)  Power Amplifier (Pa)  Transmitter (Tx)  Wideband  
A Combinatorial Impairment-Compensation Digital Predistorter for a Sub-GHz IEEE 802.11af-WLAN CMOS Transmitter Covering a 10x-Wide RF Bandwidth Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2015,Volume: 62,Issue: 4,Page: 1025-1032
Authors:  Chak-Fong Cheang;  Ka-Fai Un;  Wei-Han Yu;  Pui-In Mak;  Rui P. Martins
Favorite |  | TC[WOS]:9 TC[Scopus]:10 | Submit date:2019/02/11
Cmos  Counter-intermodulation (Cim)  Digital Predistortion (Dpd)  Frequency-dependent I/q Imbalance  Power Amplifier (Pa)  Rf  Volterra Series  Wideband Transmitter  
15-nW biopotential LPFs in 0.35-μm CMOS using subthreshold-source- follower Biquads with and without gain compensation Journal article
IEEE Transactions on Biomedical Circuits and Systems, 2013,Volume: 7,Issue: 5,Page: 690-702
Authors:  Tan-Tan Zhang;  Pui-In Mak;  Mang-I Vai;  Peng-Un Mak;  Man-Kay Law;  Sio-Hang Pun;  Feng Wan;  Rui P. Martins
Favorite |  | TC[WOS]:39 TC[Scopus]:47 | Submit date:2018/12/24
Biomedical  Biopotential  Body Effect  Cmos  Gain Compensation  Harmonic Distortion  Lowpass Filter  Mosfet  Source Follower  Subthreshold  Time Constant  Transconductor  
A nonrecursive digital calibration technique for joint elimination of transmitter and receiver I/Q imbalances with minimized add-on hardware Journal article
IEEE Transactions on Circuits and Systems II: Express Briefs, 2013,Volume: 60,Issue: 8,Page: 462-466
Authors:  Wei-Han Yu;  Chak-Fong Cheang;  Pui-In Mak;  Weng-Fai Cheng;  Ka-Fai Un;  U-Wai Lok;  Rui P. Martins
Favorite |  | TC[WOS]:8 TC[Scopus]:9 | Submit date:2019/02/11
Algorithm  Calibration  Coordinate Rotation Digital Computer (Cordic)  I/q Imbalance  Local Oscillator (Lo)  Receiver (Rx)  Transceiver  Transmitter (Tx)