Design of Retrodirective Antenna Arrays for Short-Range Wireless Power Transmission

被引：99
作者：
Li, Ying [1 ]
Jandhyala, Vikram [1 ]
机构：
[1] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 01期
关键词：
Retrodirective array; time reversal; variability design; wire antenna array; wireless power transmission;
D O I：
10.1109/TAP.2011.2167897
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：
Application of retrodirective antenna arrays in wireless power transmission is proposed in this paper. The time reversal or phase conjugate theory and design considerations of the array factors are examined in GHz regime and meter range. The wireless power transmission efficiency is analyzed in the 2-D case with full-wave electromagnetic (EM) solution and validated by analytical array theory. The design factors of array size, array spacing, element size, and specific choice of the industrial, scientific and medical (ISM) band frequency are investigated to optimize the transmission focus. Design guidelines are provided for those factors and the impact of manufacturing variability is discussed. The proposed approach can also be extended to wireless power transfer with active retrodirective rectenna array and passive RFID systems.
引用
收藏
页码：206 / 211
页数：6
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