(A) 2.4GHz, 40$\mu$W, 4dB NF and 20dB gain ULP LNA adopting current reuse technique for implementing quadruple Gm boosting

Abstract

In this paper, the ultra low power (ULP) low noise amplifer (LNA) that adopted the current resuse technique for implementing quadruple Gm boosting is propoesed. There are many trade-offs between parameters of ULP LNAs. The purpose of design is focused on alleviating the trade-offs and especially concerntrating noise figure(NF), power consumption, voltage gain and input reflection coefficient. For low NF in ULP operation, we should increase the transconductance(Gm). In order to increase the Gm, we use the inverter-type structure and stack the same structure. Using this method, we implemented the ULP LNA with the better performances and propose the guideline to implement ULP LNAs.