Analysis and Design of Millimeter-Wave Low-Power CMOS LNA With Transformer-Multicascode Topology
In: Special Issue on 2011 International Microwave Symposium, Jg. 59 (2011), Heft 12, S. 3441-3454
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academicJournal
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Zugriff:
In this paper, the analysis and design of a CMOS multicascode configuration with a noise-reduction transformer topology are presented. Two low-power (LP), miniature, and wideband low-noise amplifiers (LNAs) were designed and fabricated for demonstration. One with a transformer triple-cascode configuration was designed at V-band, and the other with a transformer quadruple-cascode configuration was designed at Q-band. Both of the two LNAs were fabricated using 90-nm LP CMOS technology. To minimize the noise figure (NF) and maximize both the small-signal gain and 3-dB bandwidth, the noise-reduction transformers are designed and placed between transistors of the triple- and quadruple-cascode devices. Based on this approach, the Q-band LNA has a gain of 20.3 dB and an NF of 4.6 dB at 40 GHz, with a power consumption of 15 mW. Both of the LNA utilize a 3-V supply voltage, but the drain source voltage of each device in the multicascode configuration is below 1 V. The V-band LNA presents a gain of 12.7 dB from 43 to 58 GHz and a minimum NF of 4.7 dB at 62.5 GHz with a power consumption of 18 mW. The chip size of the V- and Q-band LNAs are 0.42 × 0.45 mm2 and 0.45 x 0.48 mm2, including all the testing pads. Compared with the conventional cascode LNAs, the proposed transformer triple-cascode LNA has a better NF, wider 3-dB bandwidth, and lower power consumption, whereas the transformer quadruple-cascode LNA features even higher gain performance.
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Analysis and Design of Millimeter-Wave Low-Power CMOS LNA With Transformer-Multicascode Topology
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Autor/in / Beteiligte Person: | YEH, Han-Chih ; LIAO, Ze-Yu ; HUEI, WANG |
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Zeitschrift: | Special Issue on 2011 International Microwave Symposium, Jg. 59 (2011), Heft 12, S. 3441-3454 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2011 |
Medientyp: | academicJournal |
Umfang: | print, 28 ref 2 |
ISSN: | 0018-9480 (print) |
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