UM
A 0.7 to 1 GHz switched-LC N-Path LNA resilient to FDD-LTE self-interference at ≥40 MHz offset
Gengzhen Qi1,2; Barend van Liempd2,3; Pui-In Mak1; Rui P. Martins1,4; Jan Craninckx2
2017-07-05
Conference NameIEEE Radio Frequency Integrated Circuits Symposium (RFIC)
Source Publication2017 IEEE Radio Frequency Integrated Circuits Symposium
Pages276-279
Conference DateJUN 04-06, 2017
Conference PlaceHonolulu, HI
Abstract

This paper proposes a self-interference-resilient LNA for the FDD-LTE covering 0.7 to 1GHz. It incorporates a switched-LC N-path network with gain-boosting and optimum-biasing techniques to enhance the out-of-band (OOB) linearity at ≥40MHz offset. Implemented in 0.18μm SOI CMOS, the LNA achieves >31.2dB output rejection, +26.2dBm (+8dBm) OOB-IIP3 (iB) at ≥40MHz offset and 6.8dB blocker NF at +4dBm blocker power for the default mode, while consuming a reasonable power of 48.4 to 62.5mW. When reconfigured to high-rejection mode, the LNA offers a tunable cancellation notch improving the output rejection to >50dBc.

KeywordLte Fdd Wireless Communication Tunable Filter Filter Low-noise Amplifier Lna N-path Lo Generator
DOIhttp://doi.org/10.1109/RFIC.2017.7969071
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000426956400070
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Cited Times [WOS]:6   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.State Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE, University of Macau, Macau, China
2.Perceptive Systems, imec, Leuven, Belgium
3.ETRO Department, Vrije Universiteit Brussel, Brussels, Belgium
4.On leave from Instituto Superior Técnico, Universidade de Lisboa, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Gengzhen Qi,Barend van Liempd,Pui-In Mak,et al. A 0.7 to 1 GHz switched-LC N-Path LNA resilient to FDD-LTE self-interference at ≥40 MHz offset[C],2017:276-279.
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