一种改进型的Y 环双频带通FSS

针对传统的Y环分形双频FSS容易出现栅瓣的缺点,设计了一种改进型的Y环双频带通FSS。仿真分析了该FSS对不同入射角度以及不同极化方式入射波的频率响应特性;考虑到该结构具有若干几何参数,仿真并分析了各几何参数对FSS频率响应特性的影响。仿真结果表明该结构可实现Ku波段Ka波段双频工作,可有效消除栅瓣,并且具有较好的稳定性。在航空航天领域以及多频段卫星通讯领域有很大的工程实用价值。

A Novel Dual-Band FSS Based on Y-Loop Element

For traditional dual-band FSS based on Y-loop fractal, it is difficult to get rid of the grating lobe. To solve this problem, a novel dual-band FSS based on Y-loop is proposed. The frequency responses of FSS under different angles of incident waves and different polarized incident waves are simulated; The impacts of its geometric parameters on the frequency responses are simulated. The results show that the novel FSS has good angle independency and the parasitic resonance is eliminated. The novel dual-band FSS based on Y-loop has great practical value in the fields of aerospace and satellite communications.