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中文摘要：
本文主要针对一种应用于 WLAN 的微带缝隙天线进行研究和优化设计.通过在天线背面增加EBG结构的方法,对缝隙天线的背向辐射进行抑制,以降低天线的近场干扰.利用 H FSS软件进行仿真,其结果表明,在增加EBG结构以后,不仅使得微带缝隙天线的背向辐射从-5 dB下降到-25 dB,而且微带天线的交叉极化也得到极大的抑制,在5.2 GHz时交叉极化低于-25 dB,同时使得天线的增益从2.91 dBi提高到5.27 dBi.
英文摘要：
In this paper,a novel of microstrip slot antenna applied to WLAN is studied and optimized. Using the mushroom-like EBG structure at back of the slot antenna,the backward radiation is su-pressed,and the antenna near-field interference is reduced.By HFSS,the performance of the microstrip slot antenna is simulated and analyzed.The simulation results show that the backward radiation of the microstrip slot antenna with the mushroom-like EBG structure is reduced from -5 dB to -25 dB.In ad-dition,the cross polarization is less than -30 dB,and at the same time the gain of antenna increased from 2.91 dBi to 5.27 dBi at 5.2 GHz.
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