3D Printed E-Band Hybrid Coupler

In this letter, an additively manufactured 3,dB hybrid coupler is presented. While the geometrical structure is generated by a stereolithography (SLA) printer from UV curable photopolymer resin as one single part, conductive coating is provided by an electroless silverplating process. The utilized s...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 29; no. 9; pp. 1 - 3
Main Authors Lomakin, K., Klein, L., Ringel, L., Ringel, J., Sippel, M., Helmreich, K., Gold, G.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.2019
Subjects
Additive manufacturing
Couplers
Couplings
electroless silverplating
hybrid coupler
Plating
slotted waveguides
Substrates
Three-dimensional displays
Three-dimensional printing
Waveguide components
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Summary:In this letter, an additively manufactured 3,dB hybrid coupler is presented. While the geometrical structure is generated by a stereolithography (SLA) printer from UV curable photopolymer resin as one single part, conductive coating is provided by an electroless silverplating process. The utilized slotted waveguide approach improves the solvent flow during metal plating and therefore enables the fabrication of complex waveguide structures. Measured imbalance between the through and coupling ports stays below 1.5,dB over the entire E-band, while the respective phase difference ranges only between 87° and 91° despite the challenges of additive manufacturing in such frequency regions.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2019.2931458