期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 16, 期 -, 页码 724-727出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2016.2601108
关键词
Artificial magnetic conductor (AMC); diffusion; metasurface (MS); radar cross section (RCS) reduction
资金
- National Natural Science Foundation of China [61271100, 61471389, 61501494]
In this letter, a coding diffuse metasurface for radar cross section (RCS) reduction is designed, simulated, and measured. First, two kinds of artificial magnetic conductor (AMC) unit cell are analyzed, and 5 x 5 AMC unit cells construct metamaterials block. A linear array factor is optimized by the ergodic algorithm, and the sequence is expanded from one-dimension code to two-dimension code. Then, the diffuse metasurface is constructed through the metamaterials blocks arrangement. Simulation results show that the bandwidth of RCS reduction is expanded compared to the classical chessboard arrangement. The diffuse characteristic of the metasurface is achieved under normal and oblique incidence wave. Experiment results verify the validity of the theoretical design and simulation. This letter provides a rapid design method to obtain diffuse metasurface, and this metasurface may achieve potential applications on low-scattering vehicle.
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