A Low Power LNA-Phase Shifter With Vector Sum Method for 60 GHz Beamforming Receiver

Abstract

Taking into consideration the limitations of the conventional vector sum phase shifter (VSPS), a low power LNA-PS is proposed for a 60 GHz beamforming receiver using a 65 nm CMOS process. By developing a low loss 90 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">°</sup> PS that integrates the HPF into the LPF with a low loss SPST switch and a power efficient vector adder using a current reuse structure, the proposed LNA-PS shows the gain of 24 dB, the highest among the LNA-PSs developed to date, with very small power consumption of 16 mW. The total size including the pads is only 1.3 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> .