ABSTRACT A compact CPW-fed slot antenna is proposed here. The antenna has a pentagonal patch nested within an asymmetrical slot along with a coplanar waveguide feed. The suggested antenna also has a circular polarization over a wide range. For achieving better performance and to increase the gain of the antenna a single aluminum reflector is used. Results with reflectors of different materials are studied and simulated. The reflector helped to achieve a higher gain, stable radiation pattern, and a good impedance match. The antenna covers an impedance bandwidth of 10.5 GHz and an axial ratio bandwidth of 1.3 GHz allied with a fractional bandwidth of 118%. The simulated result complies with the bandwidth requirements of IEEE 802.11a (5.15–5.35 GHz/5.47–5.725 GHz) for wireless applications.

中文翻译：

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用于无线通信的带有反射器的紧凑型 CPW 馈电宽带缝隙天线

摘要 这里提出了一种紧凑的 CPW 馈电缝隙天线。天线有一个五边形贴片，嵌套在一个不对称的缝隙中，以及一个共面的波导馈电。建议的天线在很宽的范围内还具有圆极化。为了获得更好的性能并增加天线的增益，使用了单个铝反射器。研究和模拟了不同材料反射器的结果。反射器有助于实现更高的增益、稳定的辐射模式和良好的阻抗匹配。该天线覆盖10.5 GHz的阻抗带宽和1.3 GHz的轴比带宽，以及118%的分数带宽。模拟结果符合 IEEE 802.11a (5.15–5.35 GHz/5.47–5.725 GHz) 对无线应用的带宽要求。