Study on 5.8-GHz Single-Stage Charge Pump Rectifier for Internal Wireless System of Satellite
Study on 5.8-GHz Single-Stage Charge Pump Rectifier for Internal Wireless System of Satellite
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DOI：
10.1109/tmtt.2017.2672552
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发表时间：
2017-03
影响因子：
4.3
通讯作者：
Ce Wang;N. Shinohara;T. Mitani
中科院分区：
文献类型：
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作者：
Ce Wang;N. Shinohara;T. Mitani
为了减轻卫星的重量，先前的一项研究提出了卫星内部无线系统(IWS)。它是一个可以通过使用无线通信模块在卫星的各个子系统之间进行通信的系统。本文提出了一种基于微波无线能量传输技术的完整的卫星IWS方案。给出了一种基于5.8 GHz高效整流电路的电荷泵电路的设计。此外，我们还介绍了一种能够处理三次谐波分量的F类负载。从理论上比较了普通电荷泵整流器和F类负载下电荷泵整流器的整流效率。为了提高电荷泵整流器的转换效率，需要调整二极管的外加电压。通过在该电路中插入F类负载和调节二极管的外加电压，电荷泵电路在30 mW时的转换效率在仿真中提高到了78%左右，在实验中提高到了71%左右。此外，在最佳负载1300美元\欧米茄$时，输出电压高于5V。
To reduce the weight of a satellite, an internal wireless system (IWS) for satellites was proposed in a previous study. It is a system that can communicate between the satellite’s subsystems by using wireless communication modules. In this paper, we propose a complete IWS for a satellite using microwave wireless power transmission technology. The design of a 5.8-GHz high efficiency rectifier circuit-based charge pump circuit is also presented. Furthermore, we introduced a class-F load that can process the third harmonic components. The rectifying efficiencies of a normal charge pump rectifier and a charge pump rectifier with the class-F load are theoretically compared. To improve the conversion efficiency of the charge pump rectifier, the applied voltages of diodes are adjusted. Owing to inserting the class-F load and adjusted the applied voltage of diodes in this circuit, the conversion efficiency of the charge pump circuit at 30 mW increases to about 78% at 30 mW in the simulation, and to about 71% conversion efficiency in the experiment. In addition, the output voltage is higher than 5 V at an optimal load 1300 $\Omega $ .