A quadrature downconversion autocorrelation receiver architecture for UWB

In this paper, a new UWB receiver architecture is proposed. Unlike a rake receiver, it does not suffer from the timing and template matching problems, and it circumvents processing at high frequencies, thereby reducing the on-chip circuit complexity and power consumption and offering simple but effective narrowband interference rejection. Simulations show that with current IC technology, the receiver only shows a slight, acceptable performance loss with respect to the ideal case.