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A 60-GHz power amplifier with efficiency enhancement at power back-off
Conference proceeding

A 60-GHz power amplifier with efficiency enhancement at power back-off

Zhichao Li, Thangarasu Bharatha Kumar, Xiaopeng Yu and Kiat Seng Yeo
2016 International Symposium on Integrated Circuits (ISIC), pp.1-3
12/2016
DOI: https://doi.org/10.1109/ISICIR.2016.7829705

Abstract

60-GHz back-off Class AB CMOS CMOS technology Couplings efficiency Impedance matching Linearity Mars Millimeter wave technology power amplifier power combining Power generation transformer
This paper presents a 60-GHz CMOS power amplifier (PA) with efficiency enhancement at power back-off. To boost the amplifier performance at millimeter-wave (mm Wave) frequencies, the neutralized amplifier stage is optimized with input transformer. Furthermore, the power combining techniques are used to enlarge the output power and enhance the efficiency at power back-off as well. The transformer-based power-combining PA consists of several unit amplifiers, operating in Class AB for both good back-off efficiency and linearity.

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