A New Rectenna With All-Polarization-Receiving Capability for Wireless Power Transmission

被引：95
|
作者：
Sun, Hucheng [1 ]
Wen Geyi [1 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Res Ctr Appl Electromagnet, Nanjing 210044, Jiangsu, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2016年 / 15卷
基金：
中国国家自然科学基金;
关键词：
Circular polarization; linear polarization; rectennas; wireless power transmission; BAND; ARRAY;
D O I：
10.1109/LAWP.2015.2476345
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents a new rectenna with all-polarization-receiving capability for wireless power transmission applications. By utilizing a dual linearly-polarized antenna, the incident wave of arbitrary polarization can be totally collected at its two ports. To be connected with the antenna as a rectenna, a dual-input rectifier is designed so that the RF power supplied by the two ports of the antenna can be efficiently rectified. With a proper polarization of the incident wave, the proposed rectenna exhibits a maximum efficiency of 78% under the input power density of 295.3 mu W/cm(2). Moreover, under the same power density, the rectenna's efficiency can always stay higher than 61% regardless of the incident wave's polarization.
引用
收藏
页码：814 / 817
页数：4
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