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首页> 外文期刊>Applied optics >Dielectrically embedded flat mesh lens for millimeter waves applications
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Dielectrically embedded flat mesh lens for millimeter waves applications

机译：电介质嵌入的平面网状透镜，用于毫米波应用

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摘要

A flat lens based on subwavelength periodic metal meshes has been developed using photolithographic techniques. These mesh grids are stacked at specific distances and embedded in polypropylene. A code was developed to optimize more than 1000 transmission line circuits required to vary the device phase shift across the lens flat surface, mimicking the behavior of a classical lens. A W-band mesh-lens prototype was successfully manufactured and its RF performance characterized using a vector network analyzer coupled to corrugated horn antennas. Co-polarization far-field beam patterns were measured and compared with finite-element method models. The excellent agreement between data and simulations validated our designing tools and manufacturing procedures. This mesh lens is a low-loss, robust, light, and compact device that has many potential applications including millimeter wave quasi-optical systems for future cosmic microwave background polarization instruments.
机译：已经使用光刻技术开发了基于亚波长周期性金属网的平板透镜。这些网状网格以特定距离堆叠，并嵌入聚丙烯中。开发了一个代码来优化超过1000条传输线电路，以改变整个透镜平面上的设备相移，从而模仿传统透镜的行为。成功制造了W波段网状透镜原型，并使用矢量网络分析仪与波纹状喇叭天线耦合来表征其RF性能。测量了共极化远场光束方向图，并与有限元方法模型进行了比较。数据与仿真之间的出色协议验证了我们的设计工具和制造程序。这种网状透镜是一种低损耗，坚固，轻巧的紧凑型设备，具有许多潜在应用，包括用于未来宇宙微波背景偏振仪器的毫米波准光学系统。

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