Wideband and low noise CMOS amplifier for UWB receivers

An ultra-wideband (UWB) low noise amplifier (LNA) that consists of two common-source and shunt-feedback stages is presented. Measurement results show the maximum gain (S21) of 13.5 dB with the 3-dB band from 1.85 to 10.2 GHz and return losses (S11, S22) of less than −10 dB from 3 to 11 GHz. In addition, the fabricated LNA achieves the average noise figure (NF) of 4.5 dB from 1.85 to 10.2 GHz. To our knowledge, these are the best measured data up to date for the CMOS LNA. The input-referred third-order intercept point (IIP3) and the input-referred 1-dB compression point (P1dB) are obtained as −1 dBm and −9 dBm, respectively, while consuming 13 mW in 0.18 μm RF CMOS process. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 749–752, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22282

[1]  F. Ali,et al.  A novel cascode feedback GaAs MMIC LNA with transformer-coupled output using multiple fabrication processes , 1992, IEEE Microwave and Guided Wave Letters.

[2]  Huey-Ru Chuang,et al.  0.18 μm 3-6 GHz CMOS broadband LNA for UWB radio , 2005 .

[3]  Changwan Kim,et al.  Ultra-wideband CMOS low noise amplifier , 2005 .

[4]  Stephen P. Boyd,et al.  Bandwidth extension in CMOS with optimized on-chip inductors , 2000, IEEE Journal of Solid-State Circuits.

[5]  R. Gharpurey.  A broadband low-noise front-end amplifier for ultra wideband in 0.13-/spl mu/m CMOS , 2004, IEEE Journal of Solid-State Circuits.

[6]  Jaehoon Choi,et al.  Ultra-wideband low noise amplifier using a cascode feedback topology , 2006, Digest of Papers. 2006 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.

[7]  D.J. Allstot,et al.  Design considerations for CMOS low-noise amplifiers , 2004, 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers.

[8]  Trung-Kien Nguyen,et al.  CMOS low-noise amplifier design optimization techniques , 2004, IEEE Transactions on Microwave Theory and Techniques.

[9]  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.

[10]  Mau-Chung Frank Chang,et al.  24 GHz low-noise amplifier in 0.18 [micro sign]m CMOS technology , 2003 .