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Low‐cost metamaterial absorber using three‐dimensional circular truncated cone
Author(s) -
Yoon Youngseo,
Lim Daecheon,
Tentzeris Manos M.,
Lim Sungjoon
Publication year - 2018
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31211
Subject(s) - metamaterial absorber , metamaterial , materials science , conductor , cone (formal languages) , coating , optics , dielectric , molar absorptivity , optoelectronics , composite material , physics , computer science , tunable metamaterials , algorithm
In this article, we propose a low‐cost three‐dimensional (3D) printed metamaterial absorber. The proposed metamaterial consists of a periodic structure of circular truncated cones. The dielectric materials supporting the circular truncated cone are made from a poly(lactic acid) filament using the 3D printer. The conductor of the circular truncated cone is developed by spraying silver‐coated copper. The performance of the proposed absorber is numerically and experimentally investigated. The simulated and measured absorptivity are 91% and 95% at 10.8 and 10.81 GHz, respectively. As a result of the 3D printing and silver spray coating processes, the proposed absorber can be easily fabricated at a low cost.