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An Ultrathin and Broadband Radar Absorber Using Resistive FSS

An ultrathin and broadband radar absorber comprising single-layer resistive frequency selective surface (FSS) is investigated in this letter. The resistive FSS layer constructed from resistive/low-conductivity treble-square loops is backed by a grounded foam material. Numerical results show that the proposed absorber can provide a 10-dB radar cross section (RCS) reduction for the conducting plate over the frequency range of 10.7–29 GHz, which is equivalent to a relative bandwidth of 92.2%. Moreover, the structure has the thickness of 2 mm (only 0.071 $\lambda$ to 0.193 $\lambda$ at lowest and highest frequencies, respectively). The equivalent circuit model is then used to introduce the working principles of the proposed absorber. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png IEEE Antennas and Wireless Propagation Letters Institute of Electrical and Electronics Engineers

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