The impedance space of the continuous inverse class-F power amplifier (PA) is extended in this paper. Traditionally, for extending impedance space, a reactive term is introduced into the current waveform of the continuous inverse class-F PA. In this paper, two reactive terms are introduced into the current and voltage waveforms simultaneously. The proposed method results in an expansive impedance space for designing broadband continuous inverse class-F PAs. For validating the proposed theory, a broadband PA working over 1.2–4.0[Formula: see text]GHz is designed and fabricated. Experimental results indicate that the fabricated broadband PA delivers a saturation power of 40.2–42.8[Formula: see text]dBm and a drain efficiency of 50.7–69%.

中文翻译：

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用于设计宽带功率放大器的扩展逆 F 类连续谱

本文扩展了连续逆F类功率放大器（PA）的阻抗空间。传统上，为了扩展阻抗空间，在连续反 F 类 PA 的电流波形中引入了一个电抗项。本文将两个无功项同时引入电流和电压波形。所提出的方法为设计宽带连续反 F 类功率放大器带来了广阔的阻抗空间。为了验证所提出的理论，设计和制造了一个工作在 1.2–4.0 [公式：见正文]GHz 的宽带 PA。实验结果表明，制造的宽带 PA 的饱和功率为 40.2–42.8[公式：见正文]dBm，漏极效率为 50.7–69%。