A compact co-planar waveguide (CPW) fed planar elliptical antenna has been designed and presented for super wideband (SWB) characteristics. The designed antenna has an overall size of 30 × 30 × 1.57 mm3, and it consists of an elliptical patch radiator fed using a modified 50 Ω CPW-fed tapered microstrip feed line. By using a semi-ring shaped structure with a tapered feed line, an impedance bandwidth of 180.66% has been observed from 1.27 to 25 GHz with a ratio bandwidth of 19.68:1. To validate simulation results, the designed antenna has been fabricated and measured, and a reasonable agreement has been observed between simulated and measured results. It has also been observed that the designed antenna offers good radiation properties over the entire operating bandwidth. The simulated average gain and radiation efficiency of the proposed SWB antenna is noted to be 4.3 dBi and 95.77%, respectively; while the measured average gain and radiation efficiency is 3.8 dBi and 94.69%, respectively.

中文翻译：

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紧凑型 CPW 馈电超宽带平面椭圆天线

一种紧凑型共面波导 (CPW) 馈电平面椭圆天线已被设计并呈现用于超宽带 (SWB) 特性。所设计的天线整体尺寸为 30 × 30 × 1.57 mm3，它由一个椭圆贴片辐射器组成，该辐射器使用改进的 50 Ω CPW 馈电锥形微带馈线馈电。通过使用带有锥形馈线的半环形结构，在 1.27 至 25 GHz 范围内观察到阻抗带宽为 180.66%，比率带宽为 19.68:1。为了验证仿真结果，设计的天线已经被制造和测量，并且在仿真结果和测量结果之间观察到了合理的一致性。还观察到，所设计的天线在整个工作带宽上提供了良好的辐射特性。建议的 SWB 天线的模拟平均增益和辐射效率分别为 4.3 dBi 和 95.77%；而测得的平均增益和辐射效率分别为 3.8 dBi 和 94.69%。