A 0.0078mm2 3.4mW Wideband Positive-feedback-Based Noise-Cancelling LNA in 28nm CMOS Exploiting $\boldsymbol{G}_{\mathrm{m}}$ Boosting

The noise figure (NF) of the low-noise amplifier (LNA), located at the forefront of wideband receivers, directly influences the total NF of the receiver. A popular approach to suppress the noise of the input transistor to decrease the LNA NF is to utilize a noise-cancelling (NC) technique, where the main amplifier provides input matching, while the auxiliary amplifier removes the noise of the main...