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Demonstration of negative refractive index with low‐cost inkjet‐printed microwave metamaterials
Author(s) -
İbili Hande,
Karaosmanoğlu Barışcan,
Ergül Özgür
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.30942
Subject(s) - metamaterial , fabrication , materials science , microwave , refractive index , split ring resonator , optoelectronics , optics , transparency (behavior) , computer science , telecommunications , physics , medicine , alternative medicine , computer security , pathology
We present low‐cost fabrications of inkjet‐printed metamaterials that are resonating at microwave frequencies. A very low‐cost setup involving commercial desktop printers loaded with silver‐based inks is constructed and used to fabricate the metamaterials. We show that, despite the challenges in the low‐cost fabrication processes, successful prints, and metamaterial samples can be obtained. A composite metamaterial design, which possesses a bandlimited transparency due to the induced negative refractive index, is fabricated and tested to demonstrate the feasibility of low‐cost metamaterials with relatively complex geometries involving three‐dimensional arrangements.