Abstract
The design, fabrication, and measurements of a broadband metamaterial absorber are reported. The proposed metamaterial absorber consists of circular metallic patches and a metallic ground plane separated by a dielectric layer. Increasing the number of metallic patches can broaden the frequency range when their resonances are closely packed together, thereby resulting in a broadband resonance. Experimental results show that the proposed absorber has high absorptivity, with a full width at half maximum absorption bandwidth of 2.8 GHz and the relative FWHM absorption bandwidth of 25.3 %. In addition, the absorber can operate at a wide range of incident angles under both transverse electric and transverse magnetic polarizations.
| Original language | English |
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| Pages (from-to) | 19-24 |
| Number of pages | 6 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 108 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 2012 |