This article presents a practical design methodology to construct output matching networks for broadband continuous mode monolithic microwave integrated circuit (MMIC) power amplifiers (PAs). Unlike conventional harmonic manipulation approaches, combinations of parallel and series LC resonant circuits are utilized to build the matching networks as it can generate frequency‐dependent components and locate the varying impedance of continuous mode. With a proper design, the impedance variation in frequency domain can be mapped to the frequency response of the matching network at the fundamental frequency and the second harmonic simultaneously. Matching network design procedures are demonstrated and results show that the frequency response of the network has very good approximation with the desired continuous mode conditions. A prototype PA is implemented on 0.25‐μm gallium nitride (GaN) MMIC process, and tested with both continuous‐wave and modulated signals. Measurement results show 50.82% maximum drain efficiency and 8.5 dB gain can be achieved across the operation bandwidth of 5.4 to 6.4 GHz.

中文翻译：

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基于LC谐振电路的匹配网络，用于连续模式MMIC功率放大器

本文提出了一种实用的设计方法，可为宽带连续模式单片微波集成电路（MMIC）功率放大器（PA）构建输出匹配网络。与传统的谐波处理方法不同，并联和串联LC的组合谐振电路用于构建匹配网络，因为它可以生成频率相关的分量并确定连续模式的变化阻抗。通过适当的设计，频域中的阻抗变化可以同时映射到匹配网络在基频和二次谐波处的频率响应。演示了匹配的网络设计程序，结果表明，网络的频率响应与所需的连续模式条件非常接近。PA原型是在0.25μm氮化镓（GaN）MMIC工艺上实现的，并已用连续波和调制信号进行了测试。测量结果表明，在5.4至6.4 GHz的工作带宽内，最大漏极效率为50.82％，增益为8.5 dB。