Abstract

In view of the problem of heavy weight of the low-frequency band metamaterial absorber, the weight of the metamaterial absorber is mainly concentrated in the medium dielectric substrate. Different from the previous metamaterial absorbers based on continuous dielectric substrate, a new lightweight metamaterial absorber based on discontinuous dielectric medium is proposed and verified in the L-band (1–2[Formula: see text]GHz). Compared with metamaterial absorber based on the continuous dielectric substrate, the weight of the metamaterial absorber designed based on discontinuous media is reduced by 42.58%. The dual-peak reflection losses of −17.29[Formula: see text]dB and −15.99[Formula: see text]dB are obtained at 1.23[Formula: see text]GHz and 1.72[Formula: see text]GHz, respectively. Our work provides a new method for constructing light dual-peak metamaterial absorbers in the L-band.

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