A current-efficient wideband cellular RF receiver for multi-band inter- and intra-band carrier aggregation using 14nm FinFET CMOS

A wideband cellular RF receiver for multi-band carrier aggregation employing a current-efficient wideband low noise amplifier and a frequency-band switchable transformer is demonstrated in a 14nm FinFET CMOS technology. The proposed wideband low-noise amplifier can support multiple-channel RF signals for intra-band carrier aggregation with high performance and low DC current consumption. Moreover, the frequency-band switchable transformer is used to support a size-efficient receiver up to 5 carrier components carrier aggregation. The receiver operates at frequencies between 0.6 to 2.7 GHz. The receiver has conversion gain more than 62 dB and noise figure less than 5 dB at all carrier aggregation combinations.