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A linear high-gain and low-power CMOS UWB mixer

Author:
Karimi, Gholamreza   Gholami, Saeed   Roshani, Saeed  


Journal:
International Journal of Electronics Letters


Issue Date:
2013


Abstract(summary):

This article presents the design process, and analysis of a high-linearity, high-gain, low-power and inductorless 3.1–4.8 GHz ultra-wideband (UWB) down conversion mixer in a 0.18 μm CMOS process with a 1.8 supply voltage. In the proposed structure, the linearity of the conventional Gilbert cell mixer is increased about 10 dBm without losing the conversion gain using the modified derivative superposition and current-bleeding techniques. Moreover, power consumption of the conventional mixer is significantly decreased. Besides, the conversion gain and S 11 of the mixer are hand calculated and the validity of the analytical formulas is verified by simulation results.


Page:
159-167


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