Fig. 4: Lightweight horn antenna.
From: Ultra-light antennas via charge programmed deposition additive manufacturing
A CP horn antenna design with complex internal features. Dielectric is shown in tan/gray, and copper in orange. B The comparison between the measured and simulated radiation patterns of the horn at 19 GHz. C Measured reflection coefficient S11 at the input port of the horn (inset: photo of the printed horn being measured in the spherical near-field range at UCLA).
