Reconfigurable Receiver With Radio-Frequency Current-Mode Complex Signal Processi

Abstract

A software-defined radio receiver that is suitable for intra-band carrier aggregation i s demonstrated. The RF front-end frequency selectivity is enhanced by the combination of the passive mixer and a proposed reconfigurab le transimpedance amplifier. High order bandpass filtering fun ction with frequency notches can be achieved at the front-end. Current domain complex signal pro- cessing is explored to select and separate multiple channels concur- rently. The receiver contains a variety of function