A 0.17-nJ/pulse IR-UWB receiver based on distributed pulse correlator in 0.18-µm digital CMOS

This paper presents a low power impulse-radio ultra-wideband (IR-UWB) receiver based on a reconfigurable, high speed analog correlator called distributed pulse correlator (DPC). The DPC incorporates built-in local template pulse generation, and hence significantly reduces the power consumption and circuit complexity of the analog correlation receiver. A chip prototype of the IR-UWB receiver was implemented in 0.18-mum standard digital CMOS, and achieved an energy efficiency of 0.17-nJ/pulse at 250-MHz pulse rate in the measurement.