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A Low-Power Multiband Blocker-Tolerant Receiver With a Steep Filtering Slope Using an N-Path LNA With Feedforward OB Blocker Cancellation and Filtering-by-Aliasing Baseband Amplifiers
Shao, Haijun1; Qi, Gengzhen1; Mak, Pui In2; Martins, Rui P.3
2022-01
Source PublicationIEEE Transactions on Circuits and Systems I: Regular Papers
ISSN1549-8328
Abstract

This paper describes a low-power multiband blocker-tolerant receiver (RX) with three steps of filtering among two transconductance (Gm) stages. To consistently achieve low noise figure (NF) and high linearity over a wide range of operating frequency, a single-Gm low-noise amplifier (LNA) heads the RX with embedded N-path filtering, and feed-forward out-of-band (OB) blocker cancellation to surmount the tradeoff between the passband bandwidth (BW) and OB rejection without sacrificing the power budget. A filtering-by-aliasing (FA) block embeds another single-Gm baseband (BB) amplifier to allow a steep roll-off lowpass response with a clock-rate-defined passband BW. Prototyped in 28-nm CMOS, the RX achieves a 3.1-dB NF and a 5.4-dBm OB-IIP3 at 2 GHz, while consuming only 22 mW, measured at a gain of 22 dB. The tunable passband BW is 2.5 to 20 MHz, and the RF-to-BB composite filtering slope is 20 to 50 dB/10 MHz at 1.75xBW offset. The RX occupies a 0.24 mm² active area.

KeywordBaseband (Bb) Blocker-tolerant Feed-forward Blocker Cancellation Feedforward Systems Filtering-by-aliasing (Fa) Gain Linearity Linearity N-path Filter Noise Figure (Nf) Noise Measurement Out-of-band (Ob) Rejection Passband Radio Frequency Receiver (Rx) And Radio Frequency (Rf) Receivers
DOI10.1109/TCSI.2021.3098810
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000733447800001
Scopus ID2-s2.0-85112660501
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
Faculty of Science and Technology
THE STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI (UNIVERSITY OF MACAU)
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorMak, Pui In
Affiliation1.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, China, also with the Faculty of Science and Technology (ECE), University of Macau, Macau 999078, China, and also with the Institute of Microelectronics, University of
2.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, China, also with the Faculty of Science and Technology (ECE), University of Macau, Macau 999078, China, and also with the Institute of Microelectronics, University of Macau, Macau 999078, China (e-mail: pimak@umac.mo)
3.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macao 999078, China, also with the Faculty of Science and Technology (ECE), University of Macau, Macao 999078, China, and also with the Institute of Microelectronics, University of Macau, Macau 999078, China, on leave from the Instituto Superior Técnico, Universidade de Lisboa, 1649-004 Lisboa, Portugal.
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Shao, Haijun,Qi, Gengzhen,Mak, Pui In,et al. A Low-Power Multiband Blocker-Tolerant Receiver With a Steep Filtering Slope Using an N-Path LNA With Feedforward OB Blocker Cancellation and Filtering-by-Aliasing Baseband Amplifiers[J]. IEEE Transactions on Circuits and Systems I: Regular Papers,2022.
APA Shao, Haijun,Qi, Gengzhen,Mak, Pui In,&Martins, Rui P..(2022).A Low-Power Multiband Blocker-Tolerant Receiver With a Steep Filtering Slope Using an N-Path LNA With Feedforward OB Blocker Cancellation and Filtering-by-Aliasing Baseband Amplifiers.IEEE Transactions on Circuits and Systems I: Regular Papers.
MLA Shao, Haijun,et al."A Low-Power Multiband Blocker-Tolerant Receiver With a Steep Filtering Slope Using an N-Path LNA With Feedforward OB Blocker Cancellation and Filtering-by-Aliasing Baseband Amplifiers".IEEE Transactions on Circuits and Systems I: Regular Papers (2022).
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