Low-Power Fully Differential Ultra-Wide Band CMOS Multiplier for FM-UWB and IR-UWB Systems
نویسندگان
چکیده
A CMOS low-power four-quadrant multiplier for Ultra-Wide Band (UWB) systems using FM-UWB and Impulse Radio (IR) is presented. A set of transconductors, rather than the traditional Gilbert cell, is employed. The configuration is simple and area saving. The simulated result shows: An average gain of 22.5 dBV−1 and 20.8 dBV−1 in the bandwidth of 700 MHz at 1.2 GHz and 4 GHz center frequencies, respectively, 1.8 mA total current with 2.5 V power supply, and a linear range of ±900 mV. The layout area of the proposed multiplier is approximately 200μm × 300 μm. The process is the UMC 0.25 μm standard CMOS process.
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