This article presents a surface wave based ultra-wideband antenna. Radiation is obtained from the fast TE₀ mode in a dielectric slab. A microstrip line is connected to a triangular patch excites the desired radiating mode. Further, a rectangular ring made off two vertical parallel strips and shorted by periodic metallic vias isolates the radiating structure from other part of the antenna. Thus, it can be easily integrated in a microwave system without any significant coupling with other circuit components. The antenna can be realized in standard printed circuit board (PCB) technology. Two antennas are fabricated with varying size of the metal plane without changing the basic radiator. In both the cases, measured results show that the 10 dB impedance bandwidth remains almost unaffected by the change of ground plane size and always cover 3–11.12 GHz maintaining good radiation characteristics.

中文翻译：

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一种降低地平面效应的超宽带表面波天线

本文介绍了一种基于表面波的超宽带天线。从快速 TE ₀获得辐射介电板中的模式。微带线连接到三角形贴片，激发所需的辐射模式。此外，由两个垂直平行条带制成并由周期性金属通孔短路的矩形环将辐射结构与天线的其他部分隔离开来。因此，它可以轻松集成到微波系统中，而无需与其他电路组件进行任何显着耦合。天线可以在标准印刷电路板 (PCB) 技术中实现。在不改变基本辐射体的情况下，用不同尺寸的金属平面制造了两个天线。在这两种情况下，测量结果表明 10 dB 阻抗带宽几乎不受地平面尺寸变化的影响，并且始终覆盖 3-11.12 GHz，保持良好的辐射特性。