In this research article, a wideband antipodal Vivaldi antenna (AVA) is presented by incorporating a negative index metamaterial (NIM). The proposed antenna is designed using a linearly tapered shape structure. The overall performance of the designed antenna is improved by employing a negative index metamaterial (NIM). The ‘V’ shaped metamaterial unit cells are designed and placed at the top surface in between two radiators of AVA, to radiate the maximum electric field in the end-fire direction. The designed antenna dimensions are 50 mm × 24 mm × 0.51 mm and it is compact as compared to AVA antennas available in the literature. The maximum gain of the designed antenna is 15.26 dBi at 41.3 GHz. The antenna gain is almost constant and varies in the range of 9.25 ± 1.75 dBi over the operating frequency range of 15 GHz to 40 GHz. The optimized design of an antenna makes it suitable for various micrometer and millimeter wave applications. Also, the measured results matched with the simulated results.

在这篇研究文章中，通过结合负折射率超材料 (NIM) 展示了宽带对映维瓦尔第天线 (AVA)。所提出的天线采用线性锥形结构设计。通过采用负折射率超材料 (NIM) 提高了设计天线的整体性能。“V”形超材料单元被设计并放置在两个AVA辐射器之间的顶面，以在端射方向辐射最大电场。设计的天线尺寸为 50 mm × 24 mm × 0.51 mm，与文献中可用的 AVA 天线相比，它更紧凑。设计的天线在 41.3 GHz 时的最大增益为 15.26 dBi。天线增益几乎恒定，并在 15 GHz 至 40 GHz 的工作频率范围内在 9.25 ± 1.75 dBi 的范围内变化。天线的优化设计使其适用于各种微米和毫米波应用。此外，测量结果与模拟结果相符。