A 29.5-GHz power amplifier (PA) with a codesigned transformer-based matching network and a second harmonic control network is presented here. The efficiency of the transformer is well studied, and an accurate analytical solution to a high-efficiency transformer has been proposed. Guiding by it, a high-efficiency 1:2 transformer has been designed. A series LC network has been added between the drain and the source as a second harmonic control network. Due to the codesign, the cost of the harmonic control network is negligible. The PA achieves a 3-dB gain bandwidth from 26.9 to 33.2 GHz (21%). The P1dBP_{\mathrm {1\, dB}} exceeds 16.5 dBm with power added efficiency (PAE) beyond 27% from 27.5 to 30 GHz. At 29.5 GHz, the proposed PA achieves a P1dBP_{\mathrm {1 \,dB}} of 17.4 dBm with 30% PAE1dB and a PsatP_{\mathrm {sat}} of 17.8 dBm with the peak PAE of 30.7%.

中文翻译：

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具有效率优化变压器匹配的线性 CMOS 功率放大器


此处介绍了一款 29.5 GHz 功率放大器 (PA)，其具有共同设计的基于变压器的匹配网络和二次谐波控制网络。对变压器的效率进行了深入研究，并提出了高效变压器的精确解析解。以此为指导，设计了高效1:2变压器。在漏极和源极之间添加了串联 LC 网络作为二次谐波控制网络。由于协同设计，谐波控制网络的成本可以忽略不计。 PA 在 26.9 至 33.2 GHz (21%) 范围内实现了 3dB 增益带宽。 P1dBP_{\mathrm {1\, dB}} 超过 16.5 dBm，功率附加效率 (PAE) 在 27.5 至 30 GHz 范围内超过 27%。在 29.5 GHz 时，所提出的 PA 实现了 17.4 dBm 的 P1dBP_{\mathrm {1 \,dB}} 和 30% PAE1dB，以及 17.8 dBm 的 PsatP_{\mathrm {sat}} 和 30.7% 的峰值 PAE。