无线能量传输中平顶波束的分析应用

陈诚; 黄卡玛

doi:10.11999/JEIT170710

无线能量传输中平顶波束的分析应用

doi: 10.11999/JEIT170710

陈诚¹,
黄卡玛¹

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出版历程
- 收稿日期: 2017-07-19
- 修回日期: 2017-12-22
- 刊出日期: 2018-05-19

Synthesis of Flat-topped Beams in Wireless Power Transmission

CHEN Cheng¹,
HUANG Kama¹

摘要

摘要: 平顶波束在无线能量传输中能够保证接收端功率密度的均匀性，对提高接收效率以及简化整流电路的设计具有重要意义。该文首先基于Orchard综合，控制Schelkunoff单位圆零点位置，得到了实现平顶波束的条件；然后通过引入Sinc函数，给出了平顶波束的解与平顶宽度的对应关系；最后利用微扰法编程计算，讨论了平顶宽度与矩形系数、波纹系数、副瓣电平之间的数值关系。以一款10元阵为例，实现了副瓣低于且宽度很窄的平顶波束，验证了该文方法和结论的有效性。
- 天线 /
- 平顶波束 /
- 无线能量传输 /
- Orchard综合 /
- 微扰法
Abstract: Flat-topped beams can provide a uniform power density to the receiver in wireless power transmission, which is of great significance to improve the receiving efficiency and to simplify the design of rectifier circuit. This paper firstly studies the conditions of realizing flat-topped beam based on the Orchard synthesis by moving the zero points positions on the Schelkunoffs unit circle; secondly, it introduces the Sinc function and gives the relationship between the solution and the width of a flat-topped beam; finally, it discusses the relationship between the width and three parameters, rectangle coefficient, ripple factor, and side lobes level by using perturbation method and numerous calculations. An example of ten-element array is given to illustrate the procedure of achieving the narrowest flat-topped beam with a side lobe level less than verifying the efficiency of the methods and conclusion in this paper.
- Antenna /
- Flat-topped beams /
- Wireless power transmission /
- Orchard synthesis /
- Perturbation method

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参考文献(24)

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