This work investigates the performance enhancement of the slotted planar inverted-F antenna (PIFA) using Eccosorb MCS absorber. In order to check the enhancement of the antenna performance, structure of the PIFA antenna with and without absorber has been analyzed. This antenna structure consists of two slots etched on the patch, which are placed at a height of 0.18λ0 from the substrate. We show that with the application of absorber, the radiation pattern can be transformed and produces the radiation beam in the desired direction. The proposed antenna is loaded with two layers of Eccosorb MCS absorber on the top of the substrate and with the other two layers below the substrate. Apart from providing radiation pattern in the desired direction, the antenna with absorber also provides wideband operation of 57.8 % bandwidth with high gain. The designs were first validated by simulations and then verified by measurements.

中文翻译：

---

使用 ECcosorb MCS 吸收器的宽带开槽平面倒 F 天线，用于毫米波应用

这项工作研究了使用 Ecososorb MCS 吸收器的开槽平面倒 F 天线 (PIFA) 的性能增强。为了检验天线性能的增强情况，分析了带吸波器和不带吸波器的 PIFA 天线的结构。这种天线结构由蚀刻在贴片上的两个槽组成，它们放置在距基板 0.18λ0 的高度处。我们表明，通过应用吸收器，可以转换辐射模式并在所需方向上产生辐射束。建议的天线在基板顶部装有两层 ECcosorb MCS 吸收器，在基板下方装有另外两层。除了在所需方向上提供辐射方向图外，带吸收器的天线还提供 57.8% 带宽的宽带操作和高增益。