Inductorless Low-Voltage and Low-Power Wideband Mixer for Multistandard Receivers

Sven Karsten Hampel, Oliver Schmitz, Marc Tiebout, Ilona Rolfes

IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 5, pp. 1384-1390, May 2010


This paper presents the design and implementation of a low power wideband mixer for multistandard receivers, covering global system for mobile communications, universal mobile telecommunications system, wireless local area network, Bluetooth, and ultra-wideband. The circuit topology is based on the folded technique with a current reuse shunt feedback RF input stage operating at a low supply voltage of 1 V. The mixer offers a peak gain of 12.8 dB, a 3-dB bandwidth from 1 to 10.5 GHz, and a minimum double-sideband noise figure of 7.6 dB. The input referred compression point is better than 15 dBm with an output referred intercept point of better than 5.75 dBm over the entire bandwidth. The mixer circuit was fabricated in a 65-nm standard CMOS process and draws 5 mA of dc current, leading to a power dissipation of only 5 mW. Gain and noise performance can be further increased when operating at nominal supply voltage of 1.2 V at the expense of an increasing power dissipation.

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Tags: CMOS, inductorless, low-power, low-voltage, mixer, Wideband