A low-profile miniaturized frequency selective surface with insensitive polarization

A low-profile miniaturized frequency selective surface with insensitive polarization
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具有不敏感偏振的薄型小型化频率选择表面

DOI:
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发表时间:
2018
影响因子:
0.7
通讯作者:
Yu Wenhua
Yu Wenhua
中科院分区:
计算机科学4区
文献类型:
--
作者:
Wang Meiyu;Zhao Lei;Wang Jun;Liang Xinhua;Zhang Shengjun;Li Yingsong;Yu Wenhua

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本文提出了一种小型化宽带带通频率选择表面,该结构由卷曲的偶极金属层及其互补图案组成,由厚度为0.003λ0的介质衬底隔开,其中λ0为自由空间中的谐振波长。该方案的小区大小仅为0.03λ0×0.03λ0。此外,对于正常入射情况,所提出的FSS的3分贝带宽约为50%。结构单元的小型化和小型化使其在不同入射角度和偏振条件下的频率响应具有很大的稳定性。为了更好地理解所提出的FSS的工作原理,给出了等效电路模型。对所提出的FSS样机进行了制造和测量,以验证设计的有效性。
In this letter, a low-profile miniaturized broadband bandpass frequency selective surface (FSS) is proposed..The proposed structure consists of a convoluted dipole metal layer and its complementary pattern, which are separated.by a dielectric substrate with a thickness of 0.003λ0, where λ0 is the resonant wavelength in free space. The cell size.of the proposed FSS is only 0.03λ0 × 0.03λ0. Furthermore, 3 dB bandwidth of the proposed FSS is approximately 50%.for the normal incidence. Low profile and miniaturization of the structure element contribute to the great stability of.frequency response under the incident waves with different incident angles and polarizations. To better understand the.operational principle of the proposed FSS, the equivalent circuit model is presented. The proposed FSS prototype was.fabricated and measured to validate the design.
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