4.7pJ/pulse 7th Derivative Gaussian Pulse Generator for Impulse Radio UWB

This paper presents an ultra low-power, low-complexity circuit to generate the monocycle pulse for impulse radio UWB (IR-UWB) applications. A 7th order derivative Gaussian pulse is generated using the edge combination technique plus an extra derivative circuitry. The proposed pulse generator is designed using TSMC 0.18 mum CMOS process. Simulation shows 500 mV of pulse amplitude and 800 ps of the pulse duration. Generated pulse spectrum fully complies with the FCC spectrum mask for out-door applications, especially in the range of 3.1-5.1 GHz. The pulse generator dissipates no static current with only dynamic energy consumption of around 4.7 pJ per pulse from 1.5 V supply.