A Transformer Feedback <tex-math notation='LaTeX'>${G}_{m}$ </tex-math> -Boosting Technique for Gain Improvement and Noise Reduction in mm-Wave Cascode LNAs
In: IEEE Transactions on Microwave Theory and Techniques, Jg. 64 (2016-07-01), S. 2080-2090
Online
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Zugriff:
This paper presents the analysis and design of a novel topology of a low-noise amplifier (LNA) with gain improvement and noise reduction simultaneously. A transformer feedback ${ g}_{ m}$ -boosting technique is proposed in a single-ended cascode topology to increase the gain and reduce the noise. The proposed technique is theoretically formulated and detailed analyses are presented. Two V-band single-ended cascode LNAs, with a transformer and transmission line for impedance matching, respectively, are demonstrated to verify this technique. Fabricated in a 65-nm CMOS process, the transformer-based (TF-based) LNA exhibits a minimum noise figure (NF) of 3.6 dB at 53.5 GHz and a highest power gain of 28.2 dB at 54 GHz in measurement. To our best knowledge, this LNA has the best NF and power gain among all the published V-band LNAs in 65-nm CMOS up to date. The transmission-line-based (TL-based) LNA exhibits a minimum NF of 3.8 dB at 53.9 GHz and a highest power gain of 25.4 dB at 54.2 GHz in measurement. Both the LNAs consume 18 mA from a power supply of 1.1 V.
Titel: |
A Transformer Feedback <tex-math notation='LaTeX'>${G}_{m}$ </tex-math> -Boosting Technique for Gain Improvement and Noise Reduction in mm-Wave Cascode LNAs
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Autor/in / Beteiligte Person: | Fan, Yanli ; Morgan, Mark W. ; Xi, Tianzuo ; Huang, Daquan ; Guo, Shita ; Gui, Ping |
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Zeitschrift: | IEEE Transactions on Microwave Theory and Techniques, Jg. 64 (2016-07-01), S. 2080-2090 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2016 |
Medientyp: | unknown |
ISSN: | 1557-9670 (print) ; 0018-9480 (print) |
DOI: | 10.1109/tmtt.2016.2564398 |
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