Reuter, KayKayReuterBoe, PatrickPatrickBoeMiek, DanielDanielMiekHöft, MichaelMichaelHöftStudnitzky, ThomasThomasStudnitzkyZhong, ChongliangChongliangZhongWeißgärber, ThomasThomasWeißgärberLeon, Isabel OlayaIsabel OlayaLeon2024-09-022024-09-022024https://publica.fraunhofer.de/handle/publica/47434810.1109/LMWT.2024.33875612-s2.0-85190799199In this letter, the design and additive manufacturing (AM) of a groove gap waveguide (GGW) filter in the D-band is presented. For this kind of filter, the manufacturing of very small periodic pin structures is necessary. The conventional manufacturing of these structures by CNC milling is time-consuming, and high-precision milling machines are extremely expensive. Other manufacturing processes such as screen printing are, therefore, required for the cost-effective and efficient production of large quantities. The screen printing process is presented, and its suitability for the production of GGW components in the millimeter-wave area is validated by a third-order bandpass filter prototype in D-band, which was manufactured and electrically characterized.en3-D printingadditive manufacturing (AM)D-bandgroove gap waveguide (GGW) filtermass productionmetalsscreen printingjournal article