A Ku-Band Broadband High-IF Receiver With Wide Input Dynamic Range in 65-nm CMOS

Targeting at a volume-limited hybrid integrated satellite communication (SATCOM) system, this brief presents a broadband 11.7-17.7 GHz CMOS receiver (RX). Different from multi-channel phased-array systems, in this presented single-channel RX design, the LNA and mixer leverage large-size devices combining with broadband impedance matching methodology, gain tuning, and layout optimization to achieve a relatively high linearity and input dynamic range performance. Meanwhile, based on the Hartley architecture, the mixer achieves improved large signal handling capabilities and significant image rejection performance over broadband bandwidth with low design complexity. Implemented in a 65-nm CMOS process, the broadband RX achieves S11<-10dB from 11.4 to 18.5 GHz, a maximum -2.82 dBm IIP3, and a minimum 5.7-dB noise figure with a substantial 93 dB input spurious-free dynamic range. In addition, the proposed RX achieves 20 to 35 dB image rejection ratio without any calibration.