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3D printed dielectric rectangular waveguides, splitters and couplers for 120 GHz

2016; Optica Publishing Group; Volume: 24; Issue: 25 Linguagem: Inglês

10.1364/oe.24.028968

1094-4087

M. Weidenbach, David Jahn, Arno Rehn, Stefan Busch, Felipe Beltrán-Mejía, Jan C. Balzer, Martín Koch,

Terahertz technology and applications

We use a 3D printer to fabricate rectangular dielectric single mode waveguides for 120 GHz. The rectangular waveguides consisting of polystyrene showed an attenuation of 6.3 dB/m, which is low enough for short devices. We also characterize 3D printed Y-splitters and a 1x3-splitter based on multimode interference. Further, we construct and measure a variable planar waveguide coupler which can be used as a 3-dB coupler, a cross-coupler and no coupler at all.