This paper presents a new but simple RF energy harvesting circuit with the combination of Wilkinson power combiner and voltage multiplier circuits to enhance the output voltage level. Author has proposed a new Schottky diode-based voltage multiplier circuit which is the combination of existing conventional Greinacher voltage multiplier and Villard voltage multiplier circuits. In this proposed circuit first stage is a Greinacher circuit which provides a comparatively higher voltage and the later stages are followed by Villard Multiplier circuits to avoid the design complexities of multistage Greinacher circuits. A Wilkinson power combiner is connected with proposed circuit to combine RF receiving power from multiple receiving antennas. The insertion of Wilkinson power combiner increases the output voltages significantly for proposed circuits. A Cross couple of MOS-based RF energy harvesting circuit is also proposed and studied in RF energy harvesting applications. The performance of Schottky diode and MOS-based RF energy harvesting circuits has been studied and compared. Experimental performance of diode-based circuits has been carried out. The Experimental efficiency for proposed Schottky diode-based RF energy harvesting circuits is obtained as 58.6%. Insertion of Wilkinson power combiner in the proposed circuit increases output voltage level 84 and 90% for three stages Schottky diode-based circuit and MOS based circuit respectively that is a significant improvement of the proposed circuit. RF energy harvesting has various applications like low-power medical and remote healthcare electronics systems, providing wireless power to IoT devices for smart home automation and monitoring, and directly powering Wireless Sensor Nodes Networks (WSN) from ambient RF energy sources in a remote area.

中文翻译：

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使用 Wilkinson 功率组合器的基于交叉耦合 MOS 和基于肖特基二极管的射频能量收集电路的比较

本文提出了一种新的但简单的射频能量收集电路，它结合了威尔金森功率组合器和电压倍增器电路，以提高输出电压电平。作者提出了一种新的基于肖特基二极管的电压倍增器电路，它结合了现有的传统 Greinacher 电压倍增器和 Villard 电压倍增器电路。在这个提议的电路中，第一级是提供相对较高电压的 Greinacher 电路，后面的级是 Villard 乘法器电路，以避免多级 Greinacher 电路的设计复杂性。Wilkinson 功率组合器与建议的电路连接，以组合来自多个接收天线的 RF 接收功率。Wilkinson 功率组合器的插入显着增加了建议电路的输出电压。还提出了一种基于 MOS 的交叉耦合射频能量收集电路，并在射频能量收集应用中进行了研究。对肖特基二极管和基于 MOS 的射频能量收集电路的性能进行了研究和比较。已经进行了基于二极管的电路的实验性能。所提出的基于肖特基二极管的射频能量收集电路的实验效率为 58.6%。在所提出的电路中插入威尔金森功率组合器分别为基于肖特基二极管的三级电路和基于 MOS 的电路增加了 84% 和 90% 的输出电压水平，这是对所提出电路的显着改进。射频能量收集具有多种应用，如低功耗医疗和远程医疗电子系统，为智能家居自动化和监控的物联网设备提供无线电源，