一种加载磁电超表面的宽带多频贴片天线

发布时间：2018-04-16 12:34

本文选题：等腰直角三角形贴片天线 + 多频　；参考：《微波学报》2017年01期

【摘要】：利用磁电超表面概念通过在等腰直角三角形天线贴片和接地面上分别蚀刻周期互补开口谐振环和十字缝隙图案并将天线对应的地板位置截取掉一部分分别构建了单元1和单元2,分析了其左手特性和提高高频端增益的工作机理,最终加载单元2制作了一款宽带多频贴片天线。仿真结果表明,所提出的天线具有4个带宽并且能够覆盖2.4/5.2/5.8 GHz的蓝牙/RFID/WLAN和2.5/3.5 GHz的Wi MAX频带,这4个频带的带宽分别是0.29GHz(2.33~2.62 GHz),1.01 GHz(3.11~4.12 GHz),0.39 GHz(4.97~5.36 GHz),0.41 GHz(5.74~6.15 GHz)。由于接地板上蚀刻的超材料结构的左手特性影响了天线介质基底的等效媒质参数,天线电磁场的传播方向被改变,在高频端,天线辐射场主要集中在水平方向而不是传统贴片天线的垂直方向。
[Abstract]:By using the concept of magnetoelectric supersurface, the periodic complementary open resonant ring and cross slot pattern are etched on the isosceles right triangle antenna patch and the ground respectively, and a part of the floor position corresponding to the antenna is cut off, respectively.In units 1 and 2, the characteristics of left hand and the working mechanism of improving the gain of high frequency terminal are analyzed.Finally, a broadband multi-frequency patch antenna is fabricated by loading unit 2.The simulation results show that the proposed antenna has 4 bandwidth and can cover 2.4 / 5.2 / 5.8 GHz Bluetooth / RFID / WLAN and 2.5 / 3.5 GHz Wi MAX band. The bandwidth of these four bands is 0.29GHz(2.33~2.62 GHz 1.01 GHz(3.11~4.12 GHz ~ (0.39) GHz(4.97~5.36 GHz ~ + 0.41 GHz(5.74~6.15.Because the left-handed characteristics of the etched metamaterial structure on the floor affect the equivalent medium parameters of the antenna dielectric substrate, the propagation direction of the antenna electromagnetic field is changed at the high frequency end.The antenna radiation field is mainly concentrated in the horizontal direction rather than the vertical direction of the traditional patch antenna.
【作者单位】：空军工程大学防空反导学院;
【基金】：国家自然科学基金(61372034)
【分类号】：TN822

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