Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4881935
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Funding
- National Natural Science Foundation of China [61331005, 11204378, 11274389, 11304393, 61302023]
- Aviation Science Foundation of China [20132796018, 20123196015]
- National Science Foundation for Post-doctoral Scientists of China [2013M532131, 2013M532221]
- Natural Science Foundation of Shaanxi Province [2013JM6005]
- Special Funds for Authors of Annual Excellent Doctoral Degree Dissertations of China [201242]
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Phase gradient metasurface (PGMs) are artificial surfaces that can provide pre-defined in-plane wave-vectors to manipulate the directions of refracted/reflected waves. In this Letter, we propose to achieve wideband radar cross section (RCS) reduction using two-dimensional (2D) PGMs. A 2D PGM was designed using a square combination of 49 split-ring sub-unit cells. The PGM can provide additional wave-vectors along the two in-plane directions simultaneously, leading to either surface wave conversion, deflected reflection, or diffuse reflection. Both the simulation and experiment results verified the wide-band, polarization-independent, high-efficiency RCS reduction induced by the 2D PGM. (C) 2014 AIP Publishing LLC.
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