In this paper, a semi-flexible 2 × 1 array antenna is proposed with epoxy glass fiber and graphene as patch and ground, respectively. Microstrip patch antenna with a center parasitic patch of half-wavelength and slot in the radiating patch have been incorporated for the bandwidth enhancement in order of 79.56% (2.21–5.13 GHz). The antenna has an overall size of 0.30λ × 0.24λ at a lower frequency of operation (2.45 GHz). The incorporation of slotted Graphene in radiating element leads to a wideband regime with satisfactory gain values of 2.73 and 3.744 dBi at 2.40 and 4.0 GHz, respectively. Antenna radiation efficiency in the range of 78% with linear polarization makes the antenna appropriate for WLAN band and smart wireless devices application.

中文翻译：

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用于智能无线设备的带有寄生贴片的基于石墨烯的宽带半柔性阵列天线

在本文中，提出了一种以环氧树脂玻璃纤维和石墨烯分别作为贴片和接地的半柔性 2×1 阵列天线。具有半波长中心寄生贴片和辐射贴片中的缝隙的微带贴片天线已被纳入，以提高 79.56% (2.21–5.13 GHz) 的带宽。天线整体尺寸为0.30λ× 0.24λ在较低的工作频率（2.45 GHz）。在辐射元件中加入开缝石墨烯会导致宽带状态，在 2.40 和 4.0 GHz 处分别具有 2.73 和 3.744 dBi 的令人满意的增益值。天线辐射效率在 78% 范围内，线性极化使天线适用于 WLAN 频段和智能无线设备应用。