Low power UWB impulse radio transceiver front-end based on statistical correlation technique

In this paper, we propose low power architecture to extract UWB pulse radio signals from noise level in the presence of narrow band interfering channels based on two dimensional statistical correlation technique. The receiver consists of many narrow band-pass filters, which extract energy either from transmitted UWB signal, interfering channels or noise. Transmitted UWB data can be extracted by statistical correlation of multiple band-pass filter outputs. Super-regenerative receivers, tuned within UWB spectrum, act as band-pass filters. Summer and comparators perform statistical correlation. Synchronization is achieved by clock and data recovery (CDR) circuit. The test structure of transceiver has been implemented on 1.08 mum CMOS technology, active area of 3.15 mm², and data exchange rate of 8 Mbits/s with power consumption of 3 mw at 1.5 V Index Terms-Low power, ultra-wide band (UWB), super-regenerative receiver, interference mitigation, RF oscillator.