In this letter, we experimentally validate the concept of bespoke lenses for the specific design of a log-spiral feed. Bespoke lenses are designed using the concept of quasi-conformal transformation optics (QCTO) to enhance the radiation properties for a given feeding. Our experimental results demonstrate that the antenna with its bespoke lens has higher gain, lower cross polarization, lower sidelobes, and lower axial ratio than that with a conventional hyperhemispherical lens.

中文翻译：

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用于槽式原木螺旋进给的定制透镜的实验验证


在这封信中，我们通过实验验证了针对原木螺旋进给的特定设计的定制镜头的概念。定制透镜采用准共形变换光学 (QCTO) 的概念进行设计，以增强给定馈送的辐射特性。我们的实验结果表明，与传统超半球形透镜相比，采用定制透镜的天线具有更高的增益、更低的交叉极化、更低的旁瓣和更低的轴比。