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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Novel Design of Cavity-Backed Slot Antenna by Reformed Ground Plane (Corner Notch and Stepped) and Elongated Mushroom (EM)-EBG
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Novel Design of Cavity-Backed Slot Antenna by Reformed Ground Plane (Corner Notch and Stepped) and Elongated Mushroom (EM)-EBG

机译：改造后的地平面（凹口和阶梯形）和细长蘑菇（EM）-EBG的后腔缝隙天线的新颖设计

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摘要

A common problem for the performance of a Cavity-Backed Slot (CBS) antenna could be the heavily effect of ground plane. Travelling surface currents on ground plane could cause destructive effect on the characteristics of CBS antenna. This mainly appears on gain back lobe and also Front to Back Ratio (FBR) of pattern. To resolve this problem, the stepped ground plane and the Extended Mushroom Electromagnetic Band-Gap (EM-EBG) structure was introduced, which could minimize ground plane effects by changing the current distribution. Good agreement was achieved between the simulated and measured results. Experimental results showed that on a frequency range over 14-16 GHz, the gain was better than 11 dB and FBR of pattern in the H-plane reached to 26 dB.
机译：背腔式（CBS）天线性能的一个常见问题可能是接地层的严重影响。在地面上传播的表面电流可能会对CBS天线的特性造成破坏性影响。这主要出现在增益后瓣以及图案的前后比（FBR）上。为了解决这个问题，引入了阶梯状接地平面和扩展蘑菇形电磁带隙（EM-EBG）结构，可以通过改变电流分布来最大程度地减小接地平面的影响。模拟结果与实测结果吻合良好。实验结果表明，在14-16 GHz的频率范围内，增益优于11 dB，H平面中的图案的FBR达到26 dB。

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