In this paper, an electromagnetic band gap structure with fractal geometry based on Peano curves is proposed to suppression of degenerated modes. The geometry is characterized by the inclusion of air slots into the substrate, under the feed line, of a rectangular microstrip patch antenna. The parameters analyzed are the input impedance using the Smith chart, the reflection coefficient (S₁₁), radiation diagram and the electric field distribution of the propagation modes. The simulated results were compared with the measured results, obtained from manufactured prototypes and show that the proposed structure can be used to attenuate and suppress higher‐order modes.

中文翻译：

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基于Peano分形几何学的电磁带隙用于谐波抑制

本文提出了一种基于Peano曲线的具有分形几何形状的电磁带隙结构，以抑制简并模态。该几何形状的特征在于，在馈线下方的矩形微带贴片天线的基板中包含气隙。分析的参数是使用史密斯圆图的输入阻抗，反射系数（S ₁₁），辐射图和传播模式的电场分布。将仿真结果与从制造的原型获得的测量结果进行比较，结果表明，所提出的结构可用于衰减和抑制高阶模态。