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.

中文翻译：

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在 5W 输入功率下实现 91% 效率的 2.45GHz 整流器的研究和设计

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) 设计的输入功率约为 3W 的整流器在 2.45 GHz 下实现了 90% 的转换效率，并保持了最大转换效率的记录。在这项研究中，为了设计一种高效率和大功率的整流器，我们设计了一个更大的半导体金属结面积 GaAs 肖特基二极管，具有非常低的串联电阻和高击穿电压。此外，我们建立了二极管的 SPICE 模型和封装模型。设计的高转换效率整流器在 2.45 GHz 的 5W 输入功率下实现了 91% 的效率。