1. Subwavelength Field Shaping Approach Based on Time Reversal Technique and Defective Metasurfaces
- Author
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Shuai Ding, Zhipeng Wang, Sheng Liu, Bing-Zhong Wang, Jin-Pin Liu, Mo-Ran Zhang, Yan-He Lv, and Ren Wang
- Subjects
Physics ,0303 health sciences ,General Computer Science ,Field (physics) ,business.industry ,time reversal ,Resolution (electron density) ,General Engineering ,Defective metasurfaces ,020206 networking & telecommunications ,02 engineering and technology ,03 medical and health sciences ,Optics ,Dimension (vector space) ,Field shaping ,0202 electrical engineering, electronic engineering, information engineering ,Wireless ,General Materials Science ,Wireless power transfer ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,business ,lcsh:TK1-9971 ,subwavelength field shaping ,030304 developmental biology ,Metamaterial antenna - Abstract
The resolution limitation is a main problem in the time-reversed field shaping system. In this paper, a subwavelength field shaping approach is proposed by combining time reversal (TR) technique and defective resonant metasurfaces. The subwavelength 2D and 3D field patterns can be effectively realized in both single-target and multi-target field-shaping systems. The resolution in both single-target and multi-target field-shaping systems aided with defective metasurfaces is approximately $0.1~\lambda $ , which is corresponding to the dimension of the applied metasurface cell. The proposed technique can be used for wireless power transfer, industrial heating, and localized wireless communications.
- Published
- 2019