@INPROCEEDINGS{11000002, author={Hofmann, Andreas and Stratakos, Yorgos and Marantis, Leonidas and Spanakis-Misirlis, Vasileios and Khouri, Danti and Kanatas, Athanasios}, booktitle={2025 19th European Conference on Antennas and Propagation (EuCAP)}, title={A 3D Printed Quad-Ridged Flared Horn Antenna Feeder for Radio-Telescopes}, year={2025}, volume={}, number={}, pages={01-05}, keywords={Antenna measurements;Slot antennas;Horn antennas;Simulation;Adaptive arrays;Antenna feeds;Radomes;Frequency measurement;Coatings;Antenna radiation patterns;horn antenna feeder;radio-telescope;3D-printing;coating;slotted waveguide;dual polarization}, doi={10.23919/EuCAP63536.2025.11000002}}