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In order to quicken the pace of the frequency selective surface (FSS) design and optimization, an equivalent circuit method is used to analyze the miniaturized-element FSS structure loaded with lumped elements. According to the physical structure of the FSS, an equivalent circuit model is established. These parameters values of the equivalent circuit model are obtained by a curve-fitting process using ADS to obtain the best fitting between the circuit response and the full-wave analysis response. The fitting accuracy is improved by increasing the curve frequency and the extrema. By using the circuit model, the frequency responses of the FSS at different LC values of lumped components are obtained. The transmissions at center frequencies calculated by the circuit model are slight higher than the exact results from the full-wave analysis, and the relative errors between the center frequencies and the –3 dB bandwidths are smaller than 10%. This paper proves that it is feasible to analyze the complex FSS structure by the equivalent circuit model based on curve-fitting process. It will give some references to the quick design and optimization of the FSS.
[1] Jia H Y, Gao J S, Feng X G, Sun L C 2009 Acta Phys. Sin. 58 505 (in Chinese) [贾宏燕, 高劲松, 冯晓国, 孙连春 2009 58 505]
[2] Li X Q, Gao J S, Zhao J L, Sun L C 2008 Acta Phys. Sin. 57 3803 (in Chinese) [李小秋, 高劲松, 赵晶丽, 孙连春 2008 57 3803]
[3] Munk B A 2000 Frequency Selective Surface: Theory and Design (1st Ed.) (New York: Wiley)
[4] Wu T K 1995 Frequency-Selective Surface and Grid Array (New York: Wiley)
[5] Dubrovka R, Vazquez J, Parini C, Moore D 2006 IEE Proc. Microwaves Antenn. Propag. 153 213
[6] Costa F, Monorchio A, Manara G 2012 IEEE Antenn. Propag. Mag. 54 35
[7] Xu N X, Feng X G, Wang Y S, Chen X, Gao J S 2011 Acta Phys. Sin. 60 114102 (in Chinese) [徐念喜, 冯晓国, 王岩松, 陈新, 高劲松 2011 60 114102]
[8] Meng Z J, Wang L F, L M Y, Wu Z 2011 Acta Phys. Sin. 60 017301 (in Chinese) [蒙志君, 王立峰, 吕明云, 武哲 2011 60 017301]
[9] Ulrich R 1967 Infrar. Phys. 7 37
[10] Lee S W, Zarillo G, Law C L 1982 IEEE Trans. Antenn. Propag. AP-30 904
[11] Langley R J, Drinkwater A J 1982 IEE Proc. H: Microwave Optics and Antennas 129 1
[12] Langley R J, Parker E A 1982 Electron. Lett. 18 294
[13] Savia S B, Parker E A 2003 IEE Proc. H: Microwaves Antenn. Propag. 150 37
[14] Bayatpur F, Sarabandi K 2010 IEEE Trans. Antenn. Propag. 58 1214
[15] Marcuvitz N 1986 Waveguide Handbook (1986 Ed.) (Lexington: Boston Technical Publishers)
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[1] Jia H Y, Gao J S, Feng X G, Sun L C 2009 Acta Phys. Sin. 58 505 (in Chinese) [贾宏燕, 高劲松, 冯晓国, 孙连春 2009 58 505]
[2] Li X Q, Gao J S, Zhao J L, Sun L C 2008 Acta Phys. Sin. 57 3803 (in Chinese) [李小秋, 高劲松, 赵晶丽, 孙连春 2008 57 3803]
[3] Munk B A 2000 Frequency Selective Surface: Theory and Design (1st Ed.) (New York: Wiley)
[4] Wu T K 1995 Frequency-Selective Surface and Grid Array (New York: Wiley)
[5] Dubrovka R, Vazquez J, Parini C, Moore D 2006 IEE Proc. Microwaves Antenn. Propag. 153 213
[6] Costa F, Monorchio A, Manara G 2012 IEEE Antenn. Propag. Mag. 54 35
[7] Xu N X, Feng X G, Wang Y S, Chen X, Gao J S 2011 Acta Phys. Sin. 60 114102 (in Chinese) [徐念喜, 冯晓国, 王岩松, 陈新, 高劲松 2011 60 114102]
[8] Meng Z J, Wang L F, L M Y, Wu Z 2011 Acta Phys. Sin. 60 017301 (in Chinese) [蒙志君, 王立峰, 吕明云, 武哲 2011 60 017301]
[9] Ulrich R 1967 Infrar. Phys. 7 37
[10] Lee S W, Zarillo G, Law C L 1982 IEEE Trans. Antenn. Propag. AP-30 904
[11] Langley R J, Drinkwater A J 1982 IEE Proc. H: Microwave Optics and Antennas 129 1
[12] Langley R J, Parker E A 1982 Electron. Lett. 18 294
[13] Savia S B, Parker E A 2003 IEE Proc. H: Microwaves Antenn. Propag. 150 37
[14] Bayatpur F, Sarabandi K 2010 IEEE Trans. Antenn. Propag. 58 1214
[15] Marcuvitz N 1986 Waveguide Handbook (1986 Ed.) (Lexington: Boston Technical Publishers)
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