A CMOS Ku-band single-conversion low-noise block front-end for satellite receivers

摘要

This paper presents a Ku-band single-conversion low-noise block (LNB) front-end in a 0.18 mum CMOS technology. The front-end down-converts the input signal from the Ku-band (10.5 - 13 GHz) to the L-band (0.75 - 2.25 GHz). The in-band noise figure is between 2.8 to 4.2 dB. It achieves a gain of 50 dB with plusmn2 dB variation. The in-band OIP3 is above 17 dBm and output 1-dB compression point is above 9 dBm. The front-end consumes total of 75 mA from a 1.8 V supply. The die area is 0.8times1.8 mm².