A 3―5 GHz Current-Reuse gm-Boosted CG LNA for Ultrawideband in 130 nm CMOS
In: IEEE transactions on very large scale integration (VLSI) systems, Jg. 20 (2012), Heft 3, S. 400-409
Online
academicJournal
- print, 43 ref
Zugriff:
This paper presents a low-power CMOS transconductance gm boosted common gate (CG) ultrawideband (UWB) low noise amplifier (LNA) architecture, operating in the 3-5 GHz range, employing current-reuse technique. This proposed UWB CG LNA utilizes a common source (CS) amplifier as the gm-boosting stage which shares the bias current with the CG amplifying stage. A detailed mathematical analysis of the LNA is carried out and the different design tradeoffs are analyzed. The LNA circuit was designed and fabricated using the 130-nm IBM CMOS process and it achieved input return loss (S11) and output return loss (S22) variations of respectively ―8.4 to ―40 dB and ―14 to ―15 dB within the pass-band. The LNA exhibits almost flat forward power gain (S21) of 13 dB and a reverse isolation (S12) variation of —55 dB to —40 dB, along with a noise figure (NF) ranging between 3.5 and 4.5 dB. The complete circuit (with output buffer) draws only 3.4 mW from a 1 V supply voltage.
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A 3―5 GHz Current-Reuse gm-Boosted CG LNA for Ultrawideband in 130 nm CMOS
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Autor/in / Beteiligte Person: | KHURRAM, Muhammad ; HASAN, S. M. Rezaul |
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Zeitschrift: | IEEE transactions on very large scale integration (VLSI) systems, Jg. 20 (2012), Heft 3, S. 400-409 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2012 |
Medientyp: | academicJournal |
Umfang: | print, 43 ref |
ISSN: | 1063-8210 (print) |
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