Electromagnetic simulation of a wireless power transmission system with phased antenna array

2000 10th International Crimean Microwave Conference. "Microwave and Telecommunication Technology". Conference Proceedings (IEEE Cat. No.00EX415) Pub Date : 2000-09-11 DOI:10.1109/CRMICO.2000.1255845

D. Sazonov

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Abstract

The power transfer efficiency between a transmitting antenna array and receiving rectenna with a continuous circular aperture is considered. The ratio of received and input powers gives the WPT efficiency in dependence of the amplitude distribution in transmitting array The presented data gives a comprehensive description of the basic properties of the microwave WPT system. The gaps between transmitting antenna array elements are increasing the total size of the antenna aperture. It narrows down the angular field distribution in the rectenna and is favorable to the WPT efficiency rise (at values not more than 0.7-0.8). The excessive increasing of gaps increases the side-lobes of the transmitting array. The power inside the main lobe of the angular field distribution decreases and WPT efficiency rising comes down. The first pre-cited tendency is dominated for elements with size

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相控阵无线电力传输系统的电磁仿真

考虑了具有连续圆孔径的发射天线阵列与接收整流天线之间的功率传输效率。接收功率和输入功率的比值给出了WPT效率与发射阵列振幅分布的关系，给出的数据全面描述了微波WPT系统的基本特性。发射天线阵列元件之间的间隙增大了天线孔径的总尺寸。它缩小了整流天线的角场分布，有利于WPT效率的提高(在不大于0.7-0.8的值)。间隙的过度增大使发射阵列的旁瓣增大。角场分布主瓣内功率减小，WPT效率上升幅度减小。对于尺寸

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2000 10th International Crimean Microwave Conference. "Microwave and Telecommunication Technology". Conference Proceedings (IEEE Cat. No.00EX415)

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