A 1.5–40 GHz frequency modulated continuous wave radar receiver front-end

摘要

This study presents an ultra-wideband receiver front-end, designed for a reconfigurable frequency modulated continuous wave radar in a 130 nm SiGe BiCMOS technology. A variety of innovative circuit components and design techniques were employed to achieve the ultra-wide bandwidth, low noise figure (NF), good linearity, and circuit ruggedness to high input power levels. The designed front-end is capable of achieving 1.5-40 GHz bandwidth, 30 dB conversion gain, a double sideband NF of 6-10.7 dB, input return loss better than 7.5 dB and an input referred 1 dB compression point of -23 dBm. The front-end withstands continuous wave power levels of at least 25 and 20 dBm at low band and high band inputs respectively. At 3 V supply voltage, the DC power consumption amounts to 302 mW when the low band is active and 352 mW for the high band case, whereas the total IC size is 3.08nm(2).