期刊
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION
卷 2019, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2019/1727619
关键词
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资金
- National Natural Science Foundation of China [61601093, 61701082, 61701116, 61971113, 61901095]
- National Key RD Program [SQ2018YFB180088]
- Guangdong Provincial Research and Development Plan in Key Areas [2019B010141001, 2019B010142001]
- Sichuan Provincial Science and Technology Planning Program of China [2018HH0034, 2019YFG0418, 2019YFG0120]
- Science and Technology on Electronic Information Control Laboratory
This manuscript deals with the design of a metamaterial-based surface structure for high efficiency wireless power harvesting or collection. Differently from the previously presented structures which require the use of thicker and low-loss (and for this reason high cost) dielectric substrates, the presented work employs a dual-layer structure with a thin low-loss material and an air gap; they allow for the design of very high absorption efficiency metamaterial-based surfaces, with noticeably reduced costs. Furthermore, the air gap thickness can be used as a new degree-of-freedom (more easily adjustable than the thickness of a single-layer structure) for the optimization of other design requirements such as bandwidth or structure sizes. In comparison with other existing designs, the proposed metasurface shows a comparable absorption efficiency of 84.4% but with a larger power collection surface and lower costs.
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