5G 26 GHz and 28 GHz Bands SiGe:C Receiver with Very High-Linearity and 56 dB Dynamic Range

This paper presents a receiver that covers both 26 GHz and 28 GHz frequency bands assigned for 5G applications, e.g. microwave backhauling, fixed wireless access and moving hotspot. It is fabricated in SiGe 130nm BiCMOS technology that provides a high frequency HBT with fT of 230 GHz. The device can manage a wide range of input signals thanks to its very high linearity and gain dynamic range. The receiver, measured on VQFN, exhibits 36.7±3 dB of conversion gain (I+jQ) with a noise figure of 4.2±0.6 dB, 56 dB of gain dynamic range, 18 dBc of image rejection, 13 dBm output intermodulation point (with a pick of 18 dB at 25 GHz), 5 dBm output-referred 1dB compression point over the entire 24-30 GHz RF band and 1 GHz of intermediate output frequency band. The power consumption amounts to 1.27 W with 2.5 and 3.3-V supply voltages.