, Volume 14, Issue 6, pp 1983–1991 | Cite as

An Ultra-Thin Triple-Band Polarization-Independent Wide-Angle Microwave Metamaterial Absorber

  • Kavitha MuthukrishnanEmail author
  • Venkateswaran Narasimhan


An ultra-thin triple-band metamaterial resonant structure has been proposed in this communication. The absorber is ultra-thin and compact (\( \frac{\lambda_o}{110} \)) concurrent to the lowest absorption frequency 3.44 GHz. The simulated results show the suitability of the absorber for triple-band frequency operation. The absorber has absorption spectra of 3–12 GHz having three absorption peaks at 3.44 GHz, 6.36 GHz, and 11.51 GHz and more than 90% absorption corresponding to S, C, and X bands. The full width half maximum (FWHM) is 110 MHz (3.49–3.38 GHz), 300 MHz (6.52–6.22 GHz), and 660 MHz (11.9–11.24 GHz) at the corresponding frequencies. The proposed absorber has also been examined for its angle and polarization insensitivity and the absorption was found to be polarization insensitive and has more than 90% absorption for both TE and TM modes of propagation. The absorption mechanism is substantiated by the E-field, H-field, and surface current distribution plots. The proposed absorber has been fabricated and measured. The experimental results agree with numerical results. The absorber is appropriate for potential microwave frequency applications.


Meta material Polarization independent Triple-band Ultra-thin 



The authors wish to thank SSN Trust for granting permission to use Antenna testing Facility in the Department of ECE, SSN College of Engineering. Also, the authors want to thank Mr. Murugan, Technical Assistant, for his active support in putting up the experimental setup and measurements.


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringSSN College of EngineeringChennaiIndia

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