Performance Improvement of Multi-Stacked CMOS mm-Wave Power Amplifiers Based on Negative Capacitance Phase Compensation

Abstract

This paper proposes a method for performance improvement of multi-stacked CMOS millimeter-wave power amplifiers based on negative capacitance phase detuning, which can be generalized to other phase detuning techniques. It not only yields better inter-stage matching between stacks, but also offers the advantage of relaxed inter-stage phase rotation due to transistor parasitics. A ×1.6 output power/gain and 7% efficiency improvement is observed as a result of the proposed technique. This is achieved because phase misalignment between stacks is minimized. The method is evaluated using simulations based on 28GHz PA in 45nm CMOS technology.

Designing CMOS based Class E Power Amplifier

“…The research work has discussed several researches. In 2018, Mohammad Hassan Montaseri [1] wrote to denote the improvement in Multi-Stacked CMOS mm-Wave PA. This is related and dependent on negative capacitance.…”