Near-Field Spatial Shaping Based on Planar Time Reversal Mirror

被引：2

作者：

Huang, Hui-Fen ^{[1
]}

Tang, Xiu-Ling ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou, Peoples R China

来源：

PROCEEDINGS OF THE 2021 CROSS STRAIT RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSRSWTC) | 2021年

关键词：

Time reversal; near field source; planar time reversal mirror; spatial shaping; INTENSITY;

D O I：

10.1109/CSRSWTC52801.2021.9631687

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：

In this paper, we apply the near field source exciting method to shape spatial electric fields based on time-reversal theory incorporating electromagnetic(EM) meta-surface or antenna array.As is known, it is the characteristic of adaptive backtracking that time-reversal EM waves has.In this work, we make full use of the feature to shape the EM fields at distances within the near-field region of the radiating device. What's more, superposing source with different frequency can realize multi-frequency multiplexing shaping.Full-wave simulations are carried out to illustrate the single frequency or dual frequencies electric field shaping within a given target area. When antenna array is used as planar time reversal mirror(PTRM), two shaped situations are discussed, (1)"L"-shaped at 2.45 GHz, (2) "1"-shaped at 2.3 GHz and "L"-shaped at 2.6 GHz.When meta-surface act as PTRM, "square"shaped at 5.8 GHz is illustrated.

引用

页码：83 / 85

页数：3

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