A 0.9dB NF 9mW 28nm triple-band GNSS radio receiver

In order to achieve noise figure smaller than 1dB, the GNSS receivers require external LNA, which adds area, cost and current consumption. A 28nm CMOS sub-1dB NF 9mW GNSS receiver is presented, requiring no external components. This work takes advantage of symmetry in performance between NMOS and PMOS at 28nm node and demonstrates that low NF is possible on advanced CMOS at low power levels, with proper design of on-chip matching components.