Study and Design of a 2.45-GHz Rectifier Achieving 91% Efficiency at 5-W Input Power
Study and Design of a 2.45-GHz Rectifier Achieving 91% Efficiency at 5-W Input Power
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研究%20和%20设计%20of%20a%202.45-GHz%20整流器%20实现%2091%%20效率%20at%205-W%20输入%20功率
DOI：
10.1109/lmwc.2020.3032574
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发表时间：
2021
影响因子：
3
通讯作者：
Shinohara Naoki
中科院分区：
文献类型：
--
作者：
Wang Ce;Yang Bo;Shinohara Naoki
为了实现高效的微波无线电力传输系统，需要高转换效率的整流器。Brown（1974）设计的大约3w输入功率的整流器在2.45 GHz时实现了90%的转换效率，并保持了最高转换效率的记录。在本研究中，为了设计一个高效率、高功率的整流器，我们设计了一个具有极低串联电阻和高击穿电压的较大半导体金属结面积的GaAs肖特基二极管。此外，我们还建立了二极管的SPICE模型和封装模型。所设计的高转换效率整流器在2.45 GHz频率下，在5 w输入功率下的转换效率达到91%。
To achieve a high-efficiency microwave wireless power transfer system, a high conversion efficiency rectifier is necessary. Brown (1974) designed rectifiers with approximately 3-W input power achieved 90% conversion efficiency for 2.45 GHz, and it maintains the record for maximum conversion efficiency. In this study, to design a high-efficiency and high-power rectifier, we designed a larger semiconductor metal junction area GaAs Schottky diodes possessing very low series resistance and high breakdown voltage. In addition, we built the SPICE model and package model for the diodes. The designed high conversion efficiency rectifier achieved 91% efficiency at 5-W input power for 2.45 GHz.