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

M Weidenbach, D Jahn, A Rehn

    Optics Express
    |December 14, 2016
    PubMed
    Summary
    This summary is machine-generated.

    3D printing enables fabrication of low-loss dielectric waveguides for 120 GHz applications. This study demonstrates 3D printed Y-splitters, 1x3-splitters, and a variable coupler for terahertz frequencies.

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    Area of Science:

    • Terahertz (THz) technology
    • Additive manufacturing
    • Photonics and optical engineering

    Background:

    • Dielectric waveguides are crucial components in THz systems.
    • Traditional fabrication methods can be complex and costly.
    • Need for rapid prototyping and customizable THz components.

    Purpose of the Study:

    • To demonstrate the feasibility of 3D printing dielectric waveguides for 120 GHz.
    • To characterize the performance of 3D printed waveguide components.
    • To develop a variable planar waveguide coupler for THz applications.

    Main Methods:

    • Fabrication of rectangular dielectric single mode waveguides using a 3D printer.
    • Material used: Polystyrene.
    • Characterization of Y-splitters, 1x3-splitters, and a variable planar waveguide coupler.

    Main Results:

    • Achieved low attenuation of 6.3 dB/m for 3D printed polystyrene waveguides.
    • Successfully characterized 3D printed Y-splitters and 1x3-splitters based on multimode interference.
    • Constructed and measured a variable planar waveguide coupler with adjustable coupling ratios.

    Conclusions:

    • 3D printing is a viable technique for fabricating 120 GHz dielectric waveguides.
    • The fabricated components exhibit promising performance for short-range THz applications.
    • The variable coupler offers flexibility for diverse THz system designs.