This study explains a novel wideband curvilinear Sierpinski fractal geometry (CSFG) based cylindrical dielectric resonator antenna. CSFG provides wider bandwidth by the combination of two important concepts: (i) reduction in volume to the surface area of the complete radiating structure, which in turn reduces the Q-factor; (ii) generation of two radiating modes inside the radiating structure HEM _11δ and TM _01δ . The prototype of the proposed antenna is fabricated for verifying the simulated results. Measured reflection coefficient (| S ₁₁ |) shows that the proposed antenna structure operates over the frequency range 2.2–3.5 GHz with the fractional bandwidth of 45.61%. Diversified radiation pattern, i.e. monopole (due to TM _01δ mode) and broadside (due to HEM _11δ mode) is also an important feature of the proposed antenna structure. The antenna design is relevant for WLAN (2.5 GHz) and WiMAX (3.3 GHz) applications.

中文翻译：

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宽带分形介质谐振器天线的概念设计方法

这项研究解释了一种新颖的基于宽带曲线Sierpinski分形几何（CSFG）的圆柱电介质谐振器天线。CSFG通过两个重要概念的组合提供了更宽的带宽：（i）减小整个辐射结构表面积的体积，从而减小Q因子；（ii）在辐射结构_HEM11δ和 _TM01δ内部产生两种辐射模式 。制造拟议天线的原型用于验证仿真结果。实测反射系数（| 小号 ₁₁ |）表明，所建议的天线结构在2.2-3.5 GHz的频率范围内工作，分数带宽为45.61％。多样化的辐射方向图，即单极（由于 _TM01δ模式）和宽边（由于 _HEM11δ模式）也是建议的天线结构的重要特征。天线设计与WLAN（2.5 GHz）和WiMAX（3.3 GHz）应用相关。