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A single-to-differential LNA topology with robust output gain-phase balancing against balun imbalance
Martins M.A.3; Mak P.-I.2; Martins R.P.1,2
2011-08-02
Conference NameIEEE International Symposium on Circuits and Systems (ISCAS)
Source PublicationProceedings - IEEE International Symposium on Circuits and Systems
Pages289-292
Conference DateMAY 15-18, 2011
Conference PlaceRio de Janeiro, BRAZIL
Abstract

This paper presents a technique to enhance the output balancing precision of a low-noise amplifier (LNA) against balun imbalance. By utilizing two capacitive-cross-coupling common-gate amplifiers in cascode, wideband output balancing, high voltage gain and low noise figure (NF) can be concurrently achieved. A 2.4GHz LNA design example optimized in a 0.13m CMOS process shows that the tolerable balun's gain and phase imbalances are up to 2dB and 10, respectively. With just 3.6mW of power, the NF is 2.6dB at a voltage gain of 30dB. © 2011 IEEE.

DOIhttp://doi.org/10.1109/ISCAS.2011.5937558
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000297265300071
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被引频次[WOS]:9   [WOS记录]     [WOS相关记录]
Document TypeConference paper
专题DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Instituto Superior Técnico
2.Universidade de Macau
3.Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento em Lisboa
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Martins M.A.,Mak P.-I.,Martins R.P.. A single-to-differential LNA topology with robust output gain-phase balancing against balun imbalance[C],2011:289-292.
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