Analyze and Design of Thin Planar High Impedance Surface as an Antenna
Analyze and Design of Thin Planar High Impedance Surface as an Antenna
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薄平面高阻抗表面天线的分析与设计
DOI：
10.1109/iceaa.2018.8520480
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
F. Capolino
中科院分区：
文献类型：
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作者：
Ahmad T. Almutawa;H. Kazemi;F. Capolino
本文提出了一种仅由高阻抗表面（HIS）层作为主辐射体的极薄平面天线。通过消除对HIS顶部的偶极子的需要，所提出的结构由极薄的接地介电层形成，该介电层由狗骨形金属贴片的图案化片覆盖。在工作频率为900MHz时，在厚度为波长1/100的薄衬底上设计并优化了该HIS天线。所提出的天线由6 × 6单元格构成，其性能被分析并与设计在同一频段工作的2 × 2矩形贴片阵列进行比较。尽管基板很薄，但天线的宽侧增益为13 dBi，增益带宽为23.14%。
In this paper, an extremely thin planar antenna comprising only a high impedance surface (HIS) layer as the main radiator has been proposed. By eliminating the need of the dipole on top of the HIS, the proposed structure is formed with an extremely thin grounded dielectric layer covered by a patterned sheet of dogbone-shaped metal patches. This HIS antenna has been designed and optimized on a thin substrate with a thickness of 1/100 of the wavelength at the operating frequency, 900MHz. The proposed antenna is constructed from a 6 × 6 unit-cells where the performance is being analyzed and compared with an array of 2 × 2 rectangular patches designed to operate at the same frequency band. Despite the very thin substrate, the antenna radiates with a broadside gain of 13 dBi and a gain-bandwidth of 23.14 %.