论文标题
低调双带频率频率选择性表面具有独立的操作带
Low-Profile Dual Band-pass Frequency Selective Surface with independent bands of operation
论文作者
论文摘要
提出了一种具有双带通特性的低调的，修改的互补频率选择表面（CFS）。该技术增加了对操作频段的独立控制，这是基于CFSS概念的以前FSSS设计的限制。 FSS结构利用谐振元素和层之间的相互作用以低频传递第一个操作带通响应。已经证明，一阶响应可以实现大约$λ_l/15 $的微型周期性尺寸，而超薄的整体厚度压缩至$λ_l/200 $，其中$λ_l$是最低操作带的自由空间波长。提出了等效电路模型（ECM），以解释所提出的FSS的工作原理。基于全波模拟的参数研究进一步支持了这项研究，该研究表明这种简单的方法如何允许将两个操作带解耦。在自由空间环境中制造并测试了在S和C频段同时运行的原型，以验证目的。
A low-profile, modified Complementary Frequency Selective Surface (CFSS) with dual band-pass characteristic is presented. This technique adds independent control of the operation bands, which was a limitation from previous FSSs design based on CFSS concept. The FSS structure utilizes resonant elements and interaction between the layers to deliverer the first operating bandpass response at a low frequency. It is demonstrated that the first order response can achieved miniaturized periodic dimensions of about $λ_l/15$ and ultra-thin overall thickness compressed down to $λ_l/200$, where $λ_l$ is the free space wavelength at the lowest band of operation. An equivalent circuit model (ECM) is presented to explain the working principles of the proposed FSS. This investigation is further supported by parametric studies based on full wave simulation showing how this simple approach allows decoupling of the two bands of operation. A prototype, simultaneously operating at S and C bands is fabricated and tested in a free space environment for validation purpose.
