This work deals with new design techniques of RF to dc converter coupled with commercial dc/dc converters, for efficient wireless power transfer. The dc/dc boost converter operates as current sinks, thus imposing challenging design constraints. We investigate the impact of applying a multi-sine RF input signal on power transfer efficiency, involving a source-pull optimization to maximize RF to dc energy conversion and maximizing the current throughput. This letter provides an experimental demonstration of 1.8 improvements with respect to conventional design at the operative frequency of 5.8 GHz.

中文翻译：

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通过 5.8 GHz 多正弦激励的 DC/DC 升压充电器提高无线功率传输效率


这项工作涉及射频到直流转换器与商用直流/直流转换器相结合的新设计技术，以实现高效的无线功率传输。 DC/DC 升压转换器作为电流吸收器运行，因此带来了具有挑战性的设计限制。我们研究了应用多正弦射频输入信号对功率传输效率的影响，包括源拉优化以最大化射频到直流能量转换并最大化电流吞吐量。这封信提供了在 5.8 GHz 工作频率下相对于传统设计 1.8 项改进的实验演示。