Yu Zuo, Haijun Wan, Jianxuan Li, Jialin Shi, Zusheng Jin
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Three-dimensional Frequency Selective Surface with Quasi-elliptic Bandpass Response
A novel three-dimensional (3-D) frequency selective surface (FSS) exhibiting wide- band and highly selective bandpass response is presented. The proposed FSS consists of a two- dimensional periodic array of vertical, shielded, and suspended striplines. By combining the high- pass property of the periodic array of waveguides with bandstop resonances from the inserted U-shaped striplines, a quasi-elliptic bandpass frequency response over a wide-band from 8.4 GHz to 16.2 GHz is achieved with a 3 dB frequency bandwidth of 63% and a sharp rejection skirt.