A direct conversion I/Q demodulator drives favorable basestation cost-performance metrics

摘要

Direct conversion (or low IF) receiver designs have been widely used in cell phones and wireless LAN radios because of their simplicity and lower cost. Direct conversion receiver ICs have only recently met the level of performance required for basestations. The drive to reduce cost of the next generation basestations, particularly acute for micro-cell and pico-cells, compel attention to the direct conversion architecture which offers significant cost savings.