volume | PIER Journals

Abstract

We present a broadband microwave metamaterial (MM) absorber, the unit cell of which consists of a lumped-resistor-loaded electric-inductive-capacitive (ELC) resonator and a cut-wire on the same side of a flexible polyimide substrate. In contrast to the common MM absorber, the metallic pattern layer of the proposed structure is placed parallel to the direction of propagation of the incident wave in order to reduce the radar cross-section (RCS) at frequencies other than the targeted frequency bands. Our experiments show that the proposed absorber exhibits a peak absorption rate of 92% and 93% at 8.6 GHz and 13.4 GHz, respectively, and 88% of the full-width at half-maximum (FWHM) bandwidth is achieved.

1. Landy, N. I., S. Sajuyigbe, J. J. Mock, D. R. Smith, and W. J. Padilla, "Perfect metamaterial absorber," Phys. Rev. Lett., Vol. 100, 274021-274024, 2008.
doi:10.1103/PhysRevLett.100.207402 Google Scholar

2. Tao, H., N. I. Landy, C. M. Bingham, X. Zang, R. D. Averitt, and W. J. Padilla, "A metamaterial absorber for the terahertz regime: Design, fabrication and characterization," Optic Express, Vol. 16, 7181-7188, 2008.
doi:10.1364/OE.16.007181 Google Scholar

3. Alici, K. B., A. B. Turhan, C. M. Soukoulis, and E. Ozbay, "Optically thin composite resonant absorber at the near-infrared band: A polarization independent and spectrally broadband configuration," Optic Express, Vol. 19, No. 15, 14260-14267, 2011.
doi:10.1364/OE.19.014260 Google Scholar

4. Tao, H., C. M. Bingham, D. Pilon, K. Fan, A. C. Strkwerda, D. Shrekenhammer, W. J. Padilla, X. Zhang, and R. D. Averitt, "A dual band terahertz metamaterial absorber," J. Appl. Phys. D, Vol. 43, 225102-225106, 2010.
doi:10.1088/0022-3727/43/22/225102 Google Scholar

5. Li, M., H.-L. Yang, X.-W. Hou, Y. Tian, and D.-Y. Hou, "Perfect metamaterial absorber with dual bands," Progress In Electromagnetics Research, Vol. 108, 37-49, 2010.
doi:10.2528/PIER10071409 Google Scholar

6. Lee, J. and S. Lim, "Bandwidth-enhanced and polarization-insensitive metamaterial absorber using double resonance," Electron. Lett., Vol. 47, 8-9, 2011.
doi:10.1049/el.2010.2770 Google Scholar

7. Cheng, Y., H. Yang, Z. Cheng, and N. Wu, "Perfect metamaterial absorber based on a split-ring-cross resonator," J. Appl. Phys. A, Vol. 102, 99-103, 2010. Google Scholar

8. He, X.-J., Y. Wang, J. Wang, T. Gui, and Q. Wu, "Dual-band terahertz metamaterial absorber with polarization insensitivity and wide incident angle," Progress In Electromagnetics Research, Vol. 115, 381-397, 2011. Google Scholar

9. Bilotti, F., A. Toscano, K. B. Alici, E. Ozbay, and L. Vegini, "Design of miniaturized narrowband absorbers based on resonant-magnetic inclusions," IEEE Trans. on Electromagnetic Compatibility, Vol. 53, 63-72, 2011.
doi:10.1109/TEMC.2010.2051229 Google Scholar

10. Cheng, Y. and H. Yang, "Design, simulation, and measurement of metamaterial absorber," Microwave Opt. Tech. Lett., Vol. 52, 877-880, 2010.
doi:10.1002/mop.25068 Google Scholar

11. Tao, H., C. M. Bingham, D. Pilon, K. Fan, A. C. Strikwerda, D. Shrekenhamer, W. J. Padilla, X. Zhang, and R. D. Averitt, "A dual band terahertz metamaterial absorber," J. of Phys. D: Appl. Phys., Vol. 43, 225102-225106, 2010.
doi:10.1088/0022-3727/43/22/225102 Google Scholar

12. Shen, X., T. J. Cui, J. Zhao, H. F. Ma, W. X. Jiang, and H. Li, "Polarizationindependent wide-angle triple-band metamaterial absorber," Optic Express, Vol. 19, 9401-9407, 2011.
doi:10.1364/OE.19.009401 Google Scholar

13. Li, H., L. H. Yuan, B. Zhou, X. P. Shen, Q. Cheng, and T. J. Cui, "Ultrathin multiband gigahertz metamaterial absorbers," J. Appl. Phys., Vol. 110, 0149091-0149098, 2011. Google Scholar

14. Zhu, B., Z.Wang, C. Huang, Y. Feng, J. Zhao, and T. Jiang, "Polarization insensitive metamaterial absorber with wide incident angle," Progress In Electromagnetics Research, Vol. 101, 231-239, 2010.
doi:10.2528/PIER10011110 Google Scholar

15. Lee, H.-M. and H.-S. Lee, "A dualband metamaterial absorber based with resonantmagnetic structures," Progress In Electromagnetics Research Letters, Vol. 33, 1-12, 2012. Google Scholar

16. Lee, H.-M. and H.-S. Lee, "A metamaterial based microwave absorber composed of coplanar electric-field-coupled resonator and wire array," Progress In Electromagnetics Research C, Vol. 34, 111-121, 2013. Google Scholar

17. Schurig, D., J. J. Mock, and D. R. Smith, "Electric-field-coupled resonators for negative permittivity metamaterials," Appl. Phys. Lett., Vol. 88, 0411091-0411093, 2006. Google Scholar

18. Zhou, J., E. N. Economon, T. Koschny, and C. M. Soukoulis, "Unifying approach to left-handed material design," Optic Express, Vol. 31, 3620-3622, 2006. Google Scholar

Prof. Hong-Min Lee