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In this paper, we present the simulation and experimental validation of an ultra-thin planar metamaterial absorber, which is composed of Jerusalem crosses loaded by interdigital capacitors. By increasing the coupling capacitance between adjacent unit cells, we are able to significantly lower the operating frequency of the absorber. The measured results indicate that the metamaterial absorber achieves a peak absorption of 88.48% at 1.58 GHz. The total thickness and the unit cell size of the absorber are 2 mm and 11 mm, which are approximately 1/95 and 1/17 of the working wavelength, respectively. Additionally, the Jerusalem crosses and the metallic ground plane are connected by vias, which makes the metamaterial absorber achieve wide-angle absorption for both transverse electric and transverse magnetic polarizations electromagnetic wave. The absorptivity is still large even at the incident angle of 60°, and the frequency of the absorption peak almost has no deviation, which makes the absorber more practical.
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Keywords:
- ultra-thin /
- wide-angle /
- metamaterial absorber
[1] Landy N I, Sajuyigbe S, Mock J J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402
[2] Zhang Y P, Zhao X P, Bao S, Luo C R 2010 Acta Phys. Sin. 59 6078 (in Chinese) [张燕萍, 赵晓鹏, 保石, 罗春荣 2010 物理学报 59 6078]
[3] Cheng Y Z, Xiao T, Yang H L, Xiao B X 2010 Acta Phys. Sin. 59 5715 (in Chinese) [程用志, 肖婷, 杨河林, 肖柏勋 2010 物理学报 59 5715]
[4] Bao S, Luo C R, Zhang Y P, Zhao X P 2010 Acta Phys. Sin. 59 3187 (in Chinese) [保石, 罗春荣, 张艳萍, 赵晓鹏 2010 物理学报 59 3187]
[5] Xu Y Q, Zhou P H, Zhang H B, Chen L, Deng L J 2011 J. Appl. Phys. 110 044102
[6] Ma Y, Chen Q, Grant J, Saha S C, Khalid A, Cumming D R S 2011 Opt. Lett. 36 945
[7] Chen S, Cheng H, Yang H F, Li J J, Duan X Y 2011 Appl. Phys. Lett. 99 253104
[8] Huang Y J, Wen G J, Li J, Zhong J P, Wang P, Sun Y H, Gordon O, Zhu W R 2012 Chin. Phys. B 21 117801
[9] Yang Y J, Huang Y J, Wen G J, Zhong J P, Sun H B, Gordon O 2012 Chin. Phys. B 21 038501
[10] Shen X P, Yang Y, Zang Y Z, Gu J, Han J G, Zhang W L, Cui T J 2012 Appl. Phys. Lett. 101 154102
[11] Fante R L, Mccormack M T 1988 IEEE Trans. Antennas Propag. 36 1443
[12] Simovski C R, Maagt P D, Member S, Melchakova I V 2005 IEEE Trans. Antennas Propag. 53 908
[13] Costa F, Monorchio A 2012 IEEE Trans. Antenn. Propag. 60 4650
[14] Raynolds J E, Munk B A, Pryor J B, Marhefka R J 2003 J. Appl. Phys. 93 5346
[15] Costa F, Monorchio A, Manara G 2012 IEEE Antenn. Propag. Mag. 54 35
[16] Luukkonen O, Simovski C, Granet G, Goussetis G, Lioubtchenko D, Räisänen A V, Tretyakov S A 2008 IEEE Trans. Antenn. Propag. 56 1624
[17] Costa F, Monorchio A, Manara G 2009 International Conference on Electromagnetics in Advanced Applications Turin, Italy, September 14-18, 2009 p852
[18] Costa F, Monorchio A, Manara G 2009 IEEE Antennas and Propagation Society International Symposium Charleston, USA, June 1-5, 2009 p1
[19] Tretyakov S 2003 Analytical Modeling in Applied Electromagnetics (1st Ed.) (London: Artech House) p230
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[1] Landy N I, Sajuyigbe S, Mock J J, Smith D R, Padilla W J 2008 Phys. Rev. Lett. 100 207402
[2] Zhang Y P, Zhao X P, Bao S, Luo C R 2010 Acta Phys. Sin. 59 6078 (in Chinese) [张燕萍, 赵晓鹏, 保石, 罗春荣 2010 物理学报 59 6078]
[3] Cheng Y Z, Xiao T, Yang H L, Xiao B X 2010 Acta Phys. Sin. 59 5715 (in Chinese) [程用志, 肖婷, 杨河林, 肖柏勋 2010 物理学报 59 5715]
[4] Bao S, Luo C R, Zhang Y P, Zhao X P 2010 Acta Phys. Sin. 59 3187 (in Chinese) [保石, 罗春荣, 张艳萍, 赵晓鹏 2010 物理学报 59 3187]
[5] Xu Y Q, Zhou P H, Zhang H B, Chen L, Deng L J 2011 J. Appl. Phys. 110 044102
[6] Ma Y, Chen Q, Grant J, Saha S C, Khalid A, Cumming D R S 2011 Opt. Lett. 36 945
[7] Chen S, Cheng H, Yang H F, Li J J, Duan X Y 2011 Appl. Phys. Lett. 99 253104
[8] Huang Y J, Wen G J, Li J, Zhong J P, Wang P, Sun Y H, Gordon O, Zhu W R 2012 Chin. Phys. B 21 117801
[9] Yang Y J, Huang Y J, Wen G J, Zhong J P, Sun H B, Gordon O 2012 Chin. Phys. B 21 038501
[10] Shen X P, Yang Y, Zang Y Z, Gu J, Han J G, Zhang W L, Cui T J 2012 Appl. Phys. Lett. 101 154102
[11] Fante R L, Mccormack M T 1988 IEEE Trans. Antennas Propag. 36 1443
[12] Simovski C R, Maagt P D, Member S, Melchakova I V 2005 IEEE Trans. Antennas Propag. 53 908
[13] Costa F, Monorchio A 2012 IEEE Trans. Antenn. Propag. 60 4650
[14] Raynolds J E, Munk B A, Pryor J B, Marhefka R J 2003 J. Appl. Phys. 93 5346
[15] Costa F, Monorchio A, Manara G 2012 IEEE Antenn. Propag. Mag. 54 35
[16] Luukkonen O, Simovski C, Granet G, Goussetis G, Lioubtchenko D, Räisänen A V, Tretyakov S A 2008 IEEE Trans. Antenn. Propag. 56 1624
[17] Costa F, Monorchio A, Manara G 2009 International Conference on Electromagnetics in Advanced Applications Turin, Italy, September 14-18, 2009 p852
[18] Costa F, Monorchio A, Manara G 2009 IEEE Antennas and Propagation Society International Symposium Charleston, USA, June 1-5, 2009 p1
[19] Tretyakov S 2003 Analytical Modeling in Applied Electromagnetics (1st Ed.) (London: Artech House) p230
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