title: 3D printed dielectric rectangular waveguides, splitters and couplers for 120 GHz.
abstract: 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.
authors.forename: M
authors.initials: M
authors.lastname: Weidenbach
authors.forename: D
authors.initials: D
authors.lastname: Jahn
authors.forename: A
authors.initials: A
authors.lastname: Rehn
authors.forename: S F
authors.initials: SF
authors.lastname: Busch
authors.forename: F
authors.initials: F
authors.lastname: Beltrán-Mejía
authors.forename: J C
authors.initials: JC
authors.lastname: Balzer
authors.forename: M
authors.initials: M
authors.lastname: Koch