We propose a new triple-band absorber in microwave frequencies in which the design, analysis, fabrication and measurement of the absorber is presented. The absorber is constructed of a periodic array of tetra-lashing triangle resonators printed on a dielectric material backed by metal ground. By adjusting the geometry parameters of the structure, we can realize a triple-band polarization-insensitive wide-angle absorber in three different resonance frequencies. Experiment results demonstrate excellent absorption rates in the designed frequency bands over wide angles of incident waves for both transverse electric and magnetic polarizations and have good correspondence with the required results.
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