标题：
2.5-D miniaturized multifunctional active frequency-selective surface
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所属单位：
电子信息工程学院
发表刊物：
IEEE Trans Antennas Propag
摘要：
In this paper, a 2.5-D approach has been used to design 2.5-D miniaturized multifunctional active frequency-selective surfaces (2.5-D MMAFSSs). The unitary element, based on the via-connected metal strips and metallic parallel plates, can be miniaturized to 0.063λ0 , where λ0 is the free-space wavelength. To achieve the relative polarization symmetry, four similar subcells based on the unitary element are combined together to constitute a 2.5-D MMAFSS unit cell. The novelty of the proposed design lies in four independent operating states that can be realized by actively changing the on-off states of p-i-n diodes. In addition, the miniaturized configuration is beneficial for the easy realization of multiple electromagnetic states with great angle stability and polarization insensitivity. For a better understanding of the physical principle, the analyses of both surface current and electric field distributions are conducted at resonance frequencies. Also, the equivalent circuit models are established to further clarify the working mechanism of the structure. Finally, a prototype of the 2.5-D MMAFSS operating at 1.9 GHz is fabricated and measured to validate the proposed concept, and the experimental results are in satisfactory agreement with the simulated ones. © 2019 IEEE.
ISSN号：
0018-926X
是否译文：
否
发表时间：
2019-07-01
合写作者：
Li, Huangyan,Costa, Filippo,Fang, Junjie,Liu, Lili,Wang, Yi,王一平,曹群生,Monorchio, Agostino
通讯作者：
Costa, Filippo,刘丽丽
发表时间：
2019-07-01
学位：哲学博士学位
职称：讲师
所在单位：经济与管理学院