A low noise 3.1 10.6 GHz pMOS distributed amplifier for ultra‐wideband applications

A low noise pMOS distributed amplifier for Ultra-wideband (UWB) application is presented in this study. The amplifier is a two-stage design fabricated in a standard 0.18-μm CMOS process. The pMOS-based distributed amplifier as input stage is used to achieve a better noise figure and a wider bandwidth; besides, the nMOS common-source amplifier as output stage is applied to obtain sufficient gain over the band, respectively. The fully amplifier exhibits a power gain of 9 dB with a gain flatness of 0.8 dB, and noise figures are approximately lower than 5.3 dB from 3.1 to 10.6 GHz. The 1-dB compression point and input third-order intercept points are −8 dBm and 3.5 dBm with total power consumption of 22.5 mW, respectively. Experimental results indicate that the proposed architecture exhibits low noise and high gain performance for UWB applications. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1641–1644, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22532

[1]  T.S. Kalkur,et al.  High-speed current-mode logic amplifier using positive feedback and feed-forward source-follower techniques for high-speed CMOS I/O buffer , 2005, IEEE Journal of Solid-State Circuits.

[2]  Huei Wang,et al.  A 5.4-mW LNA using 0.35- /spl mu/m SiGe BiCMOS technology for 3.1-10.6-GHz UWB wireless receivers , 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

[3]  Kuo-Liang Deng,et al.  Design and analysis of DC-to-14-GHz and 22-GHz CMOS cascode , 2004 .

[4]  P. Kinget,et al.  Low power programmable-gain CMOS distributed LNA for ultra-wideband applications , 2005, Digest of Technical Papers. 2005 Symposium on VLSI Circuits, 2005..

[5]  Huei Wang,et al.  A low-voltage and variable-gain distributed amplifier for 3.1-10.6 GHz UWB systems , 2006 .

[6]  Sang-Gug Lee,et al.  An ultra-wideband CMOS low noise amplifier for 3-5-GHz UWB system , 2005, IEEE Journal of Solid-State Circuits.

[7]  A. Bevilacqua,et al.  An ultrawideband CMOS low-noise amplifier for 3.1-10.6-GHz wireless receivers , 2004, IEEE Journal of Solid-State Circuits.

[8]  Yi-Jen Chan,et al.  A 2.4 GHz low phase noise VCO fabricated by 0.18 /spl mu/m pMOS technologies , 2003, 2003 International Symposium on VLSI Technology, Systems and Applications. Proceedings of Technical Papers. (IEEE Cat. No.03TH8672).