Abstract
This paper presents a miniaturized novel frequency-selective surface (FSS) absorber having ultra-wide absorption band. The proposed FSS absorber consists of a single-layer FSS printed on a grounded lossy dielectric with an air spacer and lumped resistors. The proposed design shows almost more than 90% absorptivity from 3.61 to 10.63 GHz, i.e., fractional bandwidth is 98.6%. A wide absorption band has been achieved by combining the effect of dielectric loss and ohmic loss of lumped resistors. The proposed structure is polarization insensitive being fourfold symmetric in nature. The structure shows more than 80% absorptivity upto 45° under oblique incidence at TE polarization.
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Indu, A., Mondal, S., Sarkar, P.P. (2021). Design of an Ultra-Wideband Polarization-Insensitive Frequency-Selective Absorber. In: Das, N.R., Sarkar, S. (eds) Computers and Devices for Communication. CODEC 2019. Lecture Notes in Networks and Systems, vol 147. Springer, Singapore. https://doi.org/10.1007/978-981-15-8366-7_51
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DOI: https://doi.org/10.1007/978-981-15-8366-7_51
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