| 摘要: |
| 频率选择表面（Frequency Selective Surface,FSS）在多个领域中具有重要应用价值。通过两层双行为谐振器的双方环FSS级联，实现具有准椭圆响应的FSS，不同于传统的巴特沃斯与切比雪夫型。仿真结果表明，FSS在S波段、通带至阻带单侧过渡带宽为350 MHz。设计结构与同通带二阶巴特沃斯滤波器相比，过渡带减小了30%，与三阶巴特沃斯滤波器过渡性能一致。全波仿真结果表明，设计结构工作在S频段，实现了准椭圆响应，并具有良好极化稳定性与角度稳定性。 |
| 关键词: 频率选择表面 准椭圆响应 双方环单元 |
| DOI： |
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| 基金项目: |
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| Study on Surface Design Method of Quasi-Elliptic Response Band-Pass Frequency Selection in S-Band |
| JIAO Yuyang,CHEN Zhihong,JIANG Tiehua |
| (Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China) |
| Abstract: |
| Frequency Selective Surface (FSS) has important application value in many fields. The response curves of traditional band-pass frequency selective surfaces are mostly of Butterworth and Chebyshev type. The structure realizes a band-pass frequency selective surface with quasi-elliptic response by cascading two layers of double squareloops FSS. In the S-band of the FSS, the single-side transition band width between passband and stopband is only 350 MHz. Compared with this structure, the transition band is reduced by 30%, which is consistent with the performance of the third-order Butterworth filter transition band. Full-wave simulation results implement quasi-elliptical response，and show that the structure has good polarization stability and angular stability. |
| Key words: Frequency selective surface Quasi-elliptic Double square loops |