AN ULTRA-WIDEBAND MONOPOLE ANTENNA WITH A GAIN ENHANCED PERFORMANCE USING A NOVEL SPLIT-RING META-SURFACE REFLECTOR
AN ULTRA-WIDEBAND MONOPOLE ANTENNA WITH A GAIN ENHANCED PERFORMANCE USING A NOVEL SPLIT-RING META-SURFACE REFLECTOR
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DOI：
10.1002/mop.30527
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发表时间：
2017-06-01
影响因子：
1.5
通讯作者：
Das, Santanu
中科院分区：
文献类型：
--
作者：
Sen, Gobinda;Banerjee, Amartya;Das, Santanu
提出了一种利用新型双开口环超颖面反射器实现增益增强的超宽带微带天线的设计。为了这种结构的简单性和可靠性，这里使用圆形贴片配置作为辐射元件。该天线的辐射远超宽带（UWB）频率，但使用双开口环超颖表面反射器的性能增强是在UWB频率内。具有不同分裂角的双分裂环贴片的周期性阵列被放置在柱状布置中，负责超颖表面结构在宽带上以相位一致的方式有效地反射，而不影响主辐射器的阻抗带宽。利用这种低轮廓设置（天线和反射器之间的间隙在天线的最低工作频率处的量级），宽带增益增强特性使得设计对于许多实际应用足够通用。在UWB频率范围内记录了天线增益性能（近5.5 dB）的高增量。实验结果与模拟结果吻合较好。(C)2017年Wiley Periodicals，Inc.
This article presents the design of an ultra-wideband monopole antenna with a gain enhanced performance using a novel double split ring metasurface reflector. A circular patch configuration is used here as the radiating element for the simplicity and reliability of such structures. The antenna radiates well beyond the ulta wideband (UWB) frequencies but the performance enhancement using double split ring Metasurface reflector is within UWB frequency. The periodic array of dual split ring patches with varying split angles placed in a columnar arrangement is responsible for the metasurface structure to reflect effectively in phase-agreement over a broadband without affecting the impedance bandwidth of the principal radiator. With such a low profile setup (gap between antenna and reflector is in the order of at the lowest operating frequency of the antenna) the wideband gain-enhanced characteristic makes the design versatile enough for numerous practical applications. A high increment in the antenna gain performance (nearly 5.5 dB) is recorded over the UWB frequency range. Experimental results are found to be in good agreement with the simulations. (C) 2017 Wiley Periodicals, Inc.