Microwave metasurfaces have been developing rapidly for various applications, typically fabricated on rigid substrates such as silicon and printed circuit board using conventional microfabrication and related techniques. Rapid prototyping and production is desirable for quick design changes, design flexibility for different applications, manufacturing and low cost. Here, we report on the production of microwave metasurfaces using inkjet-printed Ag conductive patterns on polyester sheets as transparent and flexible substrates. The design is shown to be easily reconfigurable between single-band absorption achieved with a single layer of metal array pattern and multi-band absorption achieved either by stacking various single-band sheets or by printing a complex pattern on a single sheet. The dielectric thickness is varied by the simple addition of blank polyester sheets between the sheet with the printed pattern and the ground plane. Optimal dielectric thickness for each combination of materials and geometries defining the metasurface has been achieved by varying the number of blank sheets to maximize the absorption to near perfect levels in each case. This method is amenable for rapidly producing narrowband and broadband metasurfaces for various applications.

微波超表面已经为各种应用快速发展，通常使用常规的微加工和相关技术在刚性衬底（例如硅和印刷电路板上）上制造微波。对于快速的设计变更，针对不同应用的设计灵活性，制造和低成本，需要快速的原型制作和生产。在这里，我们报道了在聚酯片材上使用喷墨印刷的Ag导电图案作为透明和柔性基材的微波超表面的生产。该设计显示出可以很容易地在单层金属阵列图案实现的单波段吸收与通过堆叠各种单波段片材或通过在单个片材上印刷复杂图案而实现的多波段吸收之间重新配置。通过简单地在具有印刷图案的薄片和接地平面之间添加空白聚酯薄片来改变介电厚度。通过改变空白纸的数量以在每种情况下将吸收最大化到接近完美的水平，已经实现了定义超颖表面的每种材料和几何形状组合的最佳介电厚度。该方法适用于快速生产各种应用的窄带和宽带超颖表面。