SiGe-HBT active receive mixers for basestation applications

In basestation applications, receive mixers must achieve superior intermodulation and noise performance simultaneously. Active SiGe mixers are described in this paper with 11 dB of conversion gain (CG) and input third order intercept, IIP3=+20 dBm, noise figure (NF)=15 dB at 1 GHz, and IIP3=+17 dBm, NF=14 dB at 2 GHz.