Wideband Fabry-Perot Resonator Antenna With Two Complementary FSS Layers
Wideband Fabry-Perot Resonator Antenna With Two Complementary FSS Layers
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DOI：
10.1109/tap.2014.2308533
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发表时间：
2014-05-01
影响因子：
5.7
通讯作者：
Xu, Jiadong
中科院分区：
文献类型：
--
作者：
Wang, Naizhi;Liu, Qiang;Xu, Jiadong
本文提出了一种在X波段具有宽增益带宽的法布里-珀罗（FP）谐振器天线的新设计。该天线的带宽增强是由两个互补频率选择面（fss）组合而成的电磁带隙（EBG）结构的正反射相位梯度引起的。为了更好地解释设计过程和方法，将EBG结构建模为等效电路，并使用史密斯图进行分析。实验结果表明，该天线在8.6 GHz ~ 11.4 GHz范围内的相对3db增益带宽为28%，峰值增益为13.8 dBi。此外，8.6 GHz至11.2 GHz的反射系数（S-11）低于-10 dB的阻抗带宽可以很好地覆盖增益带宽。
This paper presents a novel design of a Fabry-Perot (FP) resonator antenna with a wide gain bandwidth in X band. The bandwidth enhancement of the antenna is attributed to the positive reflection phase gradient of an electromagnetic band gap (EBG) structure, which is constructed by the combination of two complementary frequency selective surfaces (FSSs). To explain well the design procedure and approach, the EBG structure is modeled as an equivalent circuit and analyzed using the Smith Chart. Experimental results show that the antenna possesses a relative 3 dB gain bandwidth of 28%, from 8.6 GHz to 11.4 GHz, with a peak gain of 13.8 dBi. Moreover, the gain bandwidth can be well covered by the impedance bandwidth for the reflection coefficient (S-11) below -10 dB from 8.6 GHz to 11.2 GHz.