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首页> 外文期刊>International journal of electronics >Analysis and design of continuous class-E power amplifier at sub-nominal condition
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Analysis and design of continuous class-E power amplifier at sub-nominal condition

机译：亚标称条件下连续E类功率放大器的分析与设计

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摘要

The continuous class-E power amplifier at sub-nominal condition is proposed in this paper. The class-E power amplifier at continuous mode means it can be high efficient on a series matching networks while at sub-nominal condition means it only requires the zero-voltage-switching condition. Comparing with the classical class-E power amplifier, the proposed design method releases two additional design freedoms, which increase the class-E power amplifier's design flexibility. Also, the proposed continuous class-E power amplifier at sub-nominal condition can perform high efficiency over a broad bandwidth. The performance study of the continuous class-E power amplifier at sub-nominal condition is derived and the design procedure is summarised. The normalised switch voltage and current waveforms are investigated. Furthermore, the influences of different sub-nominal conditions on the power losses of the switch-on resistor and the output power capability are also discussed. A broadband continuous class-E power amplifier based on a Gallium Nitride (GaN) transistor is designed and testified to verify the proposed design methodology. The measurement results show, it can deliver 10-15W output power with 64-73% power-added efficiency over 1.4-2.8 GHz.
机译：提出了亚标称条件下的连续E类功率放大器。连续模式下的E类功率放大器意味着它在串联匹配网络上效率很高，而低于标称条件则意味着它仅需要零电压开关条件。与经典的E类功率放大器相比，该设计方法释放了两个额外的设计自由度，从而增加了E类功率放大器的设计灵活性。同样，在亚标称条件下，所提出的连续E类功率放大器可以在较宽的带宽上实现高效率。得出了亚标称连续E类功率放大器的性能研究，并总结了设计过程。研究归一化的开关电压和电流波形。此外，还讨论了不同的子额定条件对接通电阻的功率损耗和输出功率能力的影响。设计并验证了基于氮化镓（GaN）晶体管的宽带连续E类功率放大器，以验证所提出的设计方法。测量结果表明，它可以在1.4-2.8 GHz范围内提供10-15W输出功率，并具有64-73％的功率附加效率。

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