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设计了基于树枝状结构单元模型的完全吸波超材料,并将此树枝状结构完全吸波超材料作为微带天线的基板,制备了S波段超材料完全吸收基板微带天线,模拟和实验结果表明,窄带和宽带完全吸波超材料都可提高微带天线的定向性和增益,性能得到了明显改善.经过优化设计S波段超材料完全吸收基板微带天线的增益相比普通微带天线提高了1.8dB,相当于有效辐射功率提高了51%.表明将完全吸波超材料作为天线的基板,可以明显改善天线性能.
A fully absorbing metamaterial based on a dendritic unit cell model was designed and used as a substrate for the microstrip antenna. The S-band metamaterials fully absorbed substrate microstrip antenna was fabricated. The simulation and experimental results The results show that the narrowband and broadband fully absorbing metamaterials can improve the directivity and gain of the microstrip antenna and the performance has been significantly improved.After optimized design, the gain of the microstrip antenna with the fully absorbed substrate of the S-band metamaterials is increased compared with the conventional microstrip antenna 1.8dB, equivalent to an increase of 51% in the effective radiation power, indicating that completely absorbing the metamaterials as the antenna substrate can significantly improve the antenna performance.