Applied Physics A

, Volume 108, Issue 2, pp 329–335

Single-/dual-band metamaterial absorber based on cross-circular-loop resonator with shorted stubs

Authors

  • Jingping Zhong
    • Laboratory of RFIC, School of Communication and Information EngineeringUniversity of Electronic Science and Technology of China
    • Laboratory of RFIC, School of Communication and Information EngineeringUniversity of Electronic Science and Technology of China
  • Guangjun Wen
    • Laboratory of RFIC, School of Communication and Information EngineeringUniversity of Electronic Science and Technology of China
  • Haibin Sun
    • Laboratory of RFIC, School of Communication and Information EngineeringUniversity of Electronic Science and Technology of China
  • Ping Wang
    • Laboratory of RFIC, School of Communication and Information EngineeringUniversity of Electronic Science and Technology of China
  • Oghenemuero Gordon
    • Laboratory of RFIC, School of Communication and Information EngineeringUniversity of Electronic Science and Technology of China
Article

DOI: 10.1007/s00339-012-6989-0

Cite this article as:
Zhong, J., Huang, Y., Wen, G. et al. Appl. Phys. A (2012) 108: 329. doi:10.1007/s00339-012-6989-0

Abstract

A single-/dual-band metamaterial absorber (MMA) based on cross-circular-loop resonator (CCLR) with shorted stubs is discussed at microwave frequencies in this paper. The single-/dual-band characteristics are realized by adjusting the positions of the shorted stubs. We briefly analyze the equivalent circuit model of the MMA unit cell and then numerically and experimentally investigate the near-perfect absorptions in such two conditions (single- and dual-band). The results indicate that the proposed MMA exhibits near-perfect impedance matching with free space and high absorptivity of 99.74 % at 8.65 GHz for single-band condition, and absorptivities of 99.75 % and 97.35 % at 8.525 and 9.1 GHz, respectively, for dual-band condition. It also exhibits a wide range of angles of incidence for both transverse electric (TE) and transverse magnetic (TM) radiation. The two operating frequency bands, in dual-band condition, can be further controlled by adjusting the positions of shorted stubs or adding other shorted stubs. So it opens the way to fabricate controllable MMAs, and so controllable perfectly matched layers and bolometers.

Copyright information

© Springer-Verlag 2012