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An ultrathin, wideband, polarization-insensitive and wide-angle metamaterial absorber is presented, which is based on one order Minkowski fractal double square loop (MFDSL) electric resonator structure and resistance film. The unit cell of this absorber consists of MFDSL, square resistance film, dielectric substrate and metal ground plane. The simulations and analyses of electromagnetic absorbing properties of this composite structure absorber are performed by the finite-difference time-domain method. The simulated reflection and absorption indicate that the absorption of the composed structure absorber is greater than 90% in a frequency range of 7.5-42 GHz. The simulated absorptions under different polarization conditions and incident angles indicate that this composite structure absorber is polarization-insensitive and of wide-angle. The further numerical simulation results indicate that the absorption of this absorber originates mainly from the absorbing mechanism of electromagnetic resonance and circuit resonance, the operation frequency range can also be adjusted by the design of the square resistance.
[1] Shelby R A, Smith D R, Schultz S 2001 Science 292 77
[2] Cui W Z, Ma W, Qiu L D, Zhang H T 2008 Electromagnetic Metamaterials and its Applications (Beijing: National Defense Industry Press) p8 (in Chinese) [崔万照, 马伟, 邱乐德, 张洪太 2008电磁超介质及其应用 (北京:国防工业出版社)第8页]
[3] Parazzoli C G, Greegor R B, Li K, Koltenbah B E C 2003 Phys. Rev. Lett. 90 107401
[4] Pendry J B 2000 Phys. Rev. lett. 85 3966
[5] Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F, Smith D R 2006 Science 314 977
[6] Landy N I, Sajuyigbe S, Mock J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402
[7] Cheng Y Z, Xiao T, Yang H L, Xiao B X 2010 Acta Phys. Sin. 59 536 (in Chinese) [程用志, 肖婷, 杨河林, 肖柏勋2010 59 536]
[8] Landy N I, Bingham C M, Tyler T, Jokerst N, Smith D R, Padilla W J 2009 Phys. Rev. B 79 125104
[9] Grant J, Ma Y, Saha S, Khalid A, Cumming D R S 2011 Opt. Lett. 36 3476
[10] Hao J M, Wang J, Liu X L, Padilla W J, Zhou L, Qiu M 2010 Appl. Phys. Lett. 96 251104
[11] Ding P, Liang E, Cai G, Hu W Q, Fan C Z, Xue Q Z 2011 J. Opt. 13 075005
[12] Gu S, Barrett J P, Hand T H, Popa B I, Cummer S A 2010 J. Appl. Phys. 108 064913
[13] Gu C, Qu S B, Pei Z B, Zhou H, Xu Z, Bai P, Peng W D, Lin B Q 2010 Chin. Phys. Lett. 27 117802
[14] Filippo C, Agostino M, Giuliano M 2010 IEEE Trans. Anten. Propag. 58 1551
[15] Shen X P, Cui T J, Ye J X 2012 Acta Phys. Sin. 61 058101 (in Chinese) [沈晓鹏, 崔铁军, 叶建祥2012 61 058101]
[16] Gu C, Qu S B, Pei Z B, Xu Z, Lin B Q, Zhou H, Bai P, Gu W, Peng W D, Ma H 2011 Acta Phys. Sin. 60 087802 (in Chinese) [顾超, 曲少波, 裴志斌, 徐卓, 林宝勤, 周航, 柏鹏, 顾魏, 彭卫东, 马华 2011 60 087802]
[17] Sun L K, Cheng H F, Zhou Y J, Wang J, Pang Y Q 2011 Acta Phys. Sin. 60 108901 (in Chinese) [孙良奎, 程海峰, 周永江, 王军, 庞永强2011 60 108901]
[18] Cheng Y Z, Wang Y, Nie Y, Zheng D H, Gong R Z, Xiong X, Wang X 2012 Acta Phys. Sin. 61 134103 (in Chinese) [程用志, 王莹, 聂彦, 郑栋浩, 龚荣洲, 熊炫, 王鲜2012 61 134103]
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[1] Shelby R A, Smith D R, Schultz S 2001 Science 292 77
[2] Cui W Z, Ma W, Qiu L D, Zhang H T 2008 Electromagnetic Metamaterials and its Applications (Beijing: National Defense Industry Press) p8 (in Chinese) [崔万照, 马伟, 邱乐德, 张洪太 2008电磁超介质及其应用 (北京:国防工业出版社)第8页]
[3] Parazzoli C G, Greegor R B, Li K, Koltenbah B E C 2003 Phys. Rev. Lett. 90 107401
[4] Pendry J B 2000 Phys. Rev. lett. 85 3966
[5] Schurig D, Mock J J, Justice B J, Cummer S A, Pendry J B, Starr A F, Smith D R 2006 Science 314 977
[6] Landy N I, Sajuyigbe S, Mock J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402
[7] Cheng Y Z, Xiao T, Yang H L, Xiao B X 2010 Acta Phys. Sin. 59 536 (in Chinese) [程用志, 肖婷, 杨河林, 肖柏勋2010 59 536]
[8] Landy N I, Bingham C M, Tyler T, Jokerst N, Smith D R, Padilla W J 2009 Phys. Rev. B 79 125104
[9] Grant J, Ma Y, Saha S, Khalid A, Cumming D R S 2011 Opt. Lett. 36 3476
[10] Hao J M, Wang J, Liu X L, Padilla W J, Zhou L, Qiu M 2010 Appl. Phys. Lett. 96 251104
[11] Ding P, Liang E, Cai G, Hu W Q, Fan C Z, Xue Q Z 2011 J. Opt. 13 075005
[12] Gu S, Barrett J P, Hand T H, Popa B I, Cummer S A 2010 J. Appl. Phys. 108 064913
[13] Gu C, Qu S B, Pei Z B, Zhou H, Xu Z, Bai P, Peng W D, Lin B Q 2010 Chin. Phys. Lett. 27 117802
[14] Filippo C, Agostino M, Giuliano M 2010 IEEE Trans. Anten. Propag. 58 1551
[15] Shen X P, Cui T J, Ye J X 2012 Acta Phys. Sin. 61 058101 (in Chinese) [沈晓鹏, 崔铁军, 叶建祥2012 61 058101]
[16] Gu C, Qu S B, Pei Z B, Xu Z, Lin B Q, Zhou H, Bai P, Gu W, Peng W D, Ma H 2011 Acta Phys. Sin. 60 087802 (in Chinese) [顾超, 曲少波, 裴志斌, 徐卓, 林宝勤, 周航, 柏鹏, 顾魏, 彭卫东, 马华 2011 60 087802]
[17] Sun L K, Cheng H F, Zhou Y J, Wang J, Pang Y Q 2011 Acta Phys. Sin. 60 108901 (in Chinese) [孙良奎, 程海峰, 周永江, 王军, 庞永强2011 60 108901]
[18] Cheng Y Z, Wang Y, Nie Y, Zheng D H, Gong R Z, Xiong X, Wang X 2012 Acta Phys. Sin. 61 134103 (in Chinese) [程用志, 王莹, 聂彦, 郑栋浩, 龚荣洲, 熊炫, 王鲜2012 61 134103]
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