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, Volume 104, Issue 1, pp 129–148 | Cite as

Design Implementation of Concentric Loops with Stubs Metamaterial Absorber

  • Dhawan SinghEmail author
  • Viranjay M. Srivastava


A novel design for passive tuned concentric loops with stubs metamaterial absorbers (MMA) has been proposed for microwave regime. This proposed MMA consists of two concentric loops separated by stubs and modified with rectangular bars. The proposed MMA structure shows versatility in design and tuned between Ku-band and X-band just by varying the length of shorted stubs and rectangular bar. The MMA structure has been found highly insensitive to oblique angle of incidence and polarization for TE and TM modes of the electromagnetic wave. The total thickness of the modified designed absorber is only 0.0092 λ0, where λ0 is the free-space wavelength at the resonant frequency. The simulated results are well matched with the measured results. The widespread potential applications of the proposed structure are found in antenna design for the reduction of radar cross section suitable for stealth technology along with radar and other communication areas.


Concentric loops Ku-band Metamaterial absorber (MMA) Radar cross section (RCS) X-band 



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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Electrical, Electronic and Computer EngineeringUniversity of KwaZulu-NatalDurbanSouth Africa

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