3D-printed λ/4 phase plate for broadband microwave applications

An efficient design for a quarter-wave (λ/4) retardation plate (QWP) operating at microwave frequencies has been designed and manufactured using dual head fused deposition modelling (FDM) 3D printing. Exploiting a bespoke composite material feedstock filament with high dielectric permittivity ϵr = 1...

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Bibliographic Details
Published inOptics express Vol. 26; no. 22; pp. 29068 - 29073
Main Authors Wu, Yingwei, Grant, Patrick S, Isakov, Dmitry
Format Journal Article
LanguageEnglish
Published United States 29.10.2018
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Summary:An efficient design for a quarter-wave (λ/4) retardation plate (QWP) operating at microwave frequencies has been designed and manufactured using dual head fused deposition modelling (FDM) 3D printing. Exploiting a bespoke composite material feedstock filament with high dielectric permittivity ϵr = 10.8, the resulting 3D-printed QWP comprising alternative layers of high and low permittivity had a high artificial double refraction of Δϵ = 2.9. The QWP provided broadband conversion of linear to circular polarization and phase modulation of an incident plane electromagnetic wave at 12-18 GHz, and demonstrated the potential for optical devices via additive manufacture for use in the microwave frequency range.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.029068