x波段无线电力传输与两级高效GaN / PA/整流器

2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI:10.1109/WPT.2015.7140186

S. Schafer, Mike Coffey, Z. Popovic

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引用次数: 22

摘要

作为功率放大器和整流器的2级x波段GaN MMIC在无线电力传输链路中进行测量。放大器工作频率为9.9 GHz，为ab类，输出功率为10W，增益> 20db。作为整流器，MMIC在>8W的功率水平下实现了超过52%的RF-DC转换效率。在距离为5厘米的无线供电链路中，系统可实现10%的DC-DC效率。其应用是双向高功率定向无线电力传输(WPT)。

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X-band wireless power transfer with two-stage high-efficiency GaN PA/ rectifier

A 2-stage X-band GaN MMIC operating as a power amplifier and rectifier is measured in a wireless power transfer link. The PA operates at 9.9 GHz in class-AB and achieves 10W of output power and >20 dB of gain. As a rectifier, the MMIC achieves over 52% RF-DC conversion efficiency at a power level of >8W. In a wireless powering link at a distance of 5 cm, the system achieves 10% DC-DC efficiency. The applications are bi-directional high power directional wireless power transfer (WPT).

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2015 IEEE Wireless Power Transfer Conference (WPTC)

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