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首页> 外文期刊>Radioengineering >Design and Optimization of a Novel Compact Broadband Linearly/Circularly Polarized Wide-Slot Antenna for WLAN and WiMAX Applications
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Design and Optimization of a Novel Compact Broadband Linearly/Circularly Polarized Wide-Slot Antenna for WLAN and WiMAX Applications

机译:用于WLAN和WiMAX应用的新型紧凑型宽带线性/圆极化宽槽天线的设计与优化

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摘要

A novel topologically modified structure of a compact low profile wide-slot antenna for broadband applications is presented. The antenna comprises a modified E-shaped slot with unequal arm lengths in the ground plane, and a parasitic quasi-rectangular loop placed coplanar with the feedline. For exciting orthogonal modes with equal amplitude, a single-point feeding technique with an asymmetrical geometry of the coplanar waveguide is used to feed the antenna. A multi-stage EM-driven optimization is used to rigorously optimize all the parameters for best impedance bandwidth and axial ratio bandwidth. The total footprint of the antenna is only 0.71 λg^2 and a 41% impedance bandwidth along with 33% axial ratio bandwidth has been achieved which covers several WLAN and WiMAX bands.
机译:提出了一种用于宽带应用的紧凑型低轮廓宽槽天线的新型拓扑修改结构。 天线包括改进的E形槽,在接地平面中具有不相等的臂长,并且寄生准矩形环路与馈线相连。 对于具有相同幅度的激励正交模式,使用具有共偏见几何形状的共光波导的单点馈电技术来馈送天线。 多级EM驱动优化用于严格优化所有参数,以获得最佳阻抗带宽和轴向比带宽。 天线的总占地面积仅为0.71λg^ 2,并且已经实现了41%的阻抗带宽以及33%的轴向比带宽,从而覆盖了几个WLAN和WiMAX带。

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