Dual-functional tunable coding metasurface based on saline water substrate

被引：15

作者：

Chen, Lei ^{[1
]}

Ma, He Liang ^{[2
]}

Song, Xiao Jun ^{[1
]}

Ruan, Ying ^{[1
]}

Cui, Hao Yang ^{[1
]}

机构：

[1] Shanghai Univ Elect Power, Coll Elect & Informat Engn, Shanghai 200090, Peoples R China

[2] Giantec Semicond Inc, Shanghai 201203, Peoples R China

来源：

SCIENTIFIC REPORTS | 2018年 / 8卷

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1038/s41598-018-20532-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper, a dual-functional tunable coding metasurface is presented at X band based on water substrate, which can realize two different functions of specific scattering pattern and absorption at two different frequency ranges. Besides, by changing the salinity of the saline water substrate, the absorption performance in high frequency can be tuned, while the scattering pattern in low frequency remains unchanged. A coding element is designed with small water cavity in it. Three coding sequences with different radiation patterns are designed to verify these functions, and one of them is fabricated and measured. Experimental results have good accordance with our simulations, which demonstrates our schemes. We believe this work can not only broaden our design manner of metasurfaces, but also have plenty potential applications in biological and medical detection domain.

引用

页数：8

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