In this work, an asymmetric ground structured hybrid reconfigurable antenna is designed, on a polyimide substrate material. The antenna model occupies dimensions of 43 × 28 × 0.2 mm, with two F-shaped slots and a U-shaped slot in the radiating structure. The antenna provides an impedance bandwidth of 44% (2.3–3.8 GHz), 12% (4.5–5.1 GHz), and 7% (6.3–6.8 GHz) at three resonant frequencies. Parametric analysis with respect to dimensional parameters is conducted in order to optimize the performance characteristics of the antenna. The asymmetric ground with slots on the radiating structure provides frequency and pattern reconfigurability by means of the placement of BAR 64 diodes , and tunability by means of switching conditions. The proposed antenna provides frequency and pattern reconfigurability in ‘S’ and ‘C’ bands for LTE, Wi-Fi, WLAN, and fixed satellite applications. A peak realized gain of 4 dB, and anefficiency of more than 74% is achieved at the fundamental resonant band o...

中文翻译：

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可挠性聚酰亚胺材料上的频率和方向图可重新配置的不对称接地天线，用于LTE，Wi-Fi，WLAN和固定卫星应用

在这项工作中，在聚酰亚胺衬底材料上设计了一种不对称的地面结构混合可重构天线。天线模型的尺寸为43×28×0.2 mm，在辐射结构中有两个F形槽和一个U形槽。该天线在三个谐振频率下的阻抗带宽分别为44％（2.3–3.8 GHz），12％（4.5–5.1 GHz）和7％（6.3–6.8 GHz）。进行关于尺寸参数的参数分析，以优化天线的性能特征。辐射结构上带有槽的不对称接地通过BAR 64二极管的放置提供频率和方向可重构性，并通过开关条件提供可调谐性。拟议的天线为LTE，Wi-Fi，WLAN，S，C频段提供频率和方向图可重配置性 和固定卫星应用。在基本谐振频带上，实现了4 dB的峰值实现增益，并且效率超过74％。