A 28-GHz two-stage differential cascode power amplifier (PA) linearized with a simple common-source (CS) body network, in which the body of the CS amplifier at the power stage is connected to the drain through a large resistance. The body network is very simple but very effective to linearize the PA. The linearity improvements are explained and shown with the intermodulation distortions (IMD3) and AM–PM characteristics. The PA also shows a wideband gain because the matching networks consist mainly of transmission-line transformers (TLTs) and distributive interstage matching. It has a gain of 20.1 dB with a bandwidth of 10.8 GHz, a saturation output power of 20.25 dBm, and an output 1-dB compression point of 18.3 dBm, which is fabricated in a 40-nm bulk CMOS process with the area of 0.214 mm2.

中文翻译：

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28GHz CMOS 功率放大器通过电阻漏极-体连接线性化

使用简单的共源极 (CS) 体网络线性化的 28 GHz 两级差分共源共栅功率放大器 (PA)，其中功率级的 CS 放大器体通过大电阻连接到漏极。身体网络非常简单，但对于线性化 PA 非常有效。通过互调失真 (IMD3) 和 AM-PM 特性来解释和显示线性度的改进。PA 还显示出宽带增益，因为匹配网络主要由传输线变压器 (TLT) 和分布式级间匹配组成。增益为20.1 dB，带宽为10.8 GHz，饱和输出功率为20.25 dBm，输出1-dB压缩点为18.3 dBm，采用40-nm体CMOS工艺制造，面积为0.214毫米2。