Mushroom High-Impedance Metasurfaces for Perfect Absorption at Two Angles of Incidence

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2017-08-05
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
2626-2629
Series
IEEE Antennas and Wireless Propagation Letters, Volume 16
Abstract
In this letter, we study the possibility to achieve perfect absorption of TM-polarized plane electromagnetic waves for two incidence angles at the same frequency. The effect was obtained in a high-impedance surface (HIS) also called a mushroom metasurface due to a combination of two types of dissipation losses inside each unit cell of the HIS, dielectric losses, and resistance of lumped loads. The dual-angle perfect absorption is a narrowband resonance effect. It was shown analytically that one can completely suppress the reflection at two predefined angles of incidence. This result was confirmed by numerical simulations of a practical (realistic and affordable) structure.
Description
Keywords
Metasurface, mushroom, perfect absorber
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Citation
Zhirihin, D, Simovski, C, Belov, P & Glybovski, S 2017, ' Mushroom High-Impedance Metasurfaces for Perfect Absorption at Two Angles of Incidence ', IEEE Antennas and Wireless Propagation Letters, vol. 16, 8003278, pp. 2626-2629 . https://doi.org/10.1109/LAWP.2017.2736506