In this paper, a novel, compact and high gain H-plane horn antenna with Substrate Integrated Waveguide (SIW) technology is examined for X-band applications. To increase the gain, an array of metamaterials is used by cutting the gap in the aperture area of the antenna in high metallization. After examining the size and position of the metamaterial unit cell and several array elements, which act as a focusing structure, and in addition, by reducing the electric permittivity coefficient of the substrate and consequently reducing the losses, an increase in gain is achieved. The performance of the proposed SIW horn antenna with metamaterials has been compared with the SIW conventional horn antenna without metamaterials. To highlight this point, the proposed antenna was designed with CST software. Then, it was fabricated and measured. Measurements show that the gain of the modified antenna is 9.2 dBi, which is 6.2 dBi higher than a conventional antenna.

中文翻译：

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利用超材料阵列增强SIW H平面喇叭天线的增益

在本文中，研究了一种采用基板集成波导 (SIW) 技术的新颖、紧凑和高增益的 H 平面喇叭天线，用于 X 波段应用。为了增加增益，通过在高金属化中切割天线孔径区域的间隙来使用超材料阵列。在检查了作为聚焦结构的超材料单元和几个阵列元件的尺寸和位置之后，另外，通过降低衬底的介电常数，从而降低损耗，实现了增益的增加。已将所提出的具有超材料的 SIW 喇叭天线的性能与没有超材料的 SIW 常规喇叭天线进行了比较。为了突出这一点，建议的天线是用 CST 软件设计的。然后，它被制造和测量。