A Low-Profile Frequency Selective Surface With Controllable Triband Characteristics

作者：Wang Desong^*; Che Wenquan; Chang Yumei; Chin Kuo Sheng; Chow Y Leonard

来源：IEEE Antennas and Wireless Propagation Letters, 2013, 12: 468-471.

DOI：10.1109/LAWP.2013.2254459

• Complementary structure
• frequency selective surface (FSS)
• spatial filter
• spatial lumped element
• triband

A novel compact low-profile frequency selective surface (FSS) with controllable triband characteristics is presented. The proposed FSS consists of a stacked periodic array of square loops and complementary apertures, respectively centered within a wire grid and an aperture grid, which can create three transmission poles and two transmission zeros. Controllable triband performance is achieved, allowing the FSS to transmit the signal at 4 GHz while reflecting the signals at 6 and 9.5 GHz. Due to the compact and low-profile structure, the designed FSS has a reduced sensitivity to the incident angle compared to traditional triband FSSs. An equivalent circuit model is proposed for predicting and analyzing the frequency characteristics of this structure. For demonstration, a prototype of the proposed FSS is fabricated and measured. Good agreement between the simulated and measured results is observed.

• 出版日期2013
• 单位长春大学; 南京大学