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A modified high linearity CMOS micromixer for UWB systems

✍ Scribed by Shui-Yang Lin; Li-Wu Yang; Xiao-Wei Sun

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
296 KB
Volume
50
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A CMOS Micromixer for 3–5 GHz UWB receivers is presented in this article. Modified class‐AB input stage is developed to improve the LO/RF, LO/IF isolation and to reduce the mixer's noise figure. A LO buffer and an output buffer are integrated in it for on‐wafer testing. Our measurement results show that, with a 50‐Ω output loaded, it can achieve 5‐dB power conversion gain, 12.5 dB SSB NF, and 4 dBm IIP3. The mixer‐core consumes 2.6 mA of current from 1.8‐V power supply, and the on‐chip area occupied by this mixer with pads excluded is only about 350 × 400 μm^2^. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1463–1466, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23395

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