Design of V-Band CMOS Low-Noise Amplifier and Mixer with Integrated Transformers
2018
A V-band low-noise amplifier (LNA) and mixer with integrated transformers are proposed and demonstrated in a 90-nm CMOS technology. The transformer configurations are analyzed and designed with the orientations that optimize the transimpedance in the LNA design, and enhance the voltage or current gain in the mixer. In high-gain and low-power modes respectively, the designed LNA shows gains of 24.4 and 20.6 dB among wide 3-dB bandwidths of 11 GHz with lowest noise figures (NF) of 6.4 and 6.2 dB. In the low-power mode, the LNA consumes only 11.5 mW, on the low side compared to the state-of-the-arts. The designed mixer shows a conversion gain of 3.2 dB and $\mathbf{P}_{\pmb{1}\mathbf{d}\mathbf{B}}$ of -1 dBm.
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