A novel hybrid continuous inverse power amplifier (PA) that constituted by a continuum of PA modes from the continuous inverse Class-F to the continuous inverse Class-B/J is proposed, and a detailed mathematical analysis is presented. The fundamental and second harmonic admittance space of the hybrid PA proposed in this paper are analyzed mathematically. By introducing phase shift parameter into the current waveform formula of hybrid continuous inverse PA, the design space of fundamental and second harmonic admittance is expanded, further increasing the operating bandwidth. The efficiency of the amplifier under different parameter conditions is calculated. In order to verify this method, a broadband high efficient PA is designed and fabricated. The drain voltage and current waveforms of the amplifier are extracted for analysis. The experimental measured results show a 60.7%-71.5% drain efficiency across the frequency band of 0.5-2.5 GHz (133% bandwidth), and the designed PA can obtain a 11.8 dB-13.9 dB gain in the interesting frequency range. Measured results are confirmed to be in good agreement with theory and simulations.

中文翻译：

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一种基于扩展导纳空间的宽带高效混合连续逆功率放大器

提出了一种新型混合连续逆功率放大器 (PA)，它由从连续逆 F 类到连续逆 B/J 类的连续 PA 模式构成，并进行了详细的数学分析。对本文提出的混合功率放大器的基波和二次谐波导纳空间进行了数学分析。通过在混合连续逆功率放大器的电流波形公式中引入相移参数，扩大了基波和二次谐波导纳的设计空间，进一步增加了工作带宽。计算放大器在不同参数条件下的效率。为了验证该方法，设计并制造了宽带高效PA。提取放大器的漏极电压和电流波形进行分析。实验测量结果显示，在 0.5-2.5 GHz 频带（133% 带宽）内具有 60.7%-71.5% 的漏极效率，并且设计的 PA 在感兴趣的频率范围内可以获得 11.8 dB-13.9 dB 的增益。测量结果被证实与理论和模拟非常吻合。