期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 63, 期 11, 页码 5155-5160出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2015.2475634
关键词
Cost-efficient bandwidth; metamaterial-inspired absorber; surface current distribution; wideband
资金
- National Natural Science Foundation of China [61271100, 61471389, 61501494]
- Natural Science Foundational Research Fund of Shaanxi Province [2012JM8003, 2010JZ6010]
- Doctoral Foundation of Air Force Engineering University [KGD080914002]
We systematically analyzed, designed, fabricated, and measured a three-layer perfect metamaterial-inspired absorber based on the double split-serration-rings (DSSRs) structure in this communication. The equivalent circuit model was presented to demonstrate the absorbing mechanism. The characters of polarized-insensitivity, wideband, and multiband absorption for the absorber were illuminated by the angular absorptions and surface current distributions. Transformation from wideband absorption with a relative bandwidth of 93.5% from 5.34 to 14.72 GHz, of which the absorptivity was larger than 90%, to multiband absorption was obtained by rotating DSSR-II of 90.. Two absorber prototypes with a thickness of 3.6 mm had been easily implemented using the common printed circuit board fabrication techniques and measured in a microwave anechoic chamber. Simulated and experimental results indicated that the perfect metamaterial-inspired absorber performed wideband and multiband absorption when DSSRs were perpendicular and parallel to each other, respectively.
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