This is a model of an assembled Ku-Band 3D Printed Corrugated Horn Antenna that I recreated from a whitepaper titled "The Prototype of a Wideband Ku-Band Conical Corrugated Horn Antenna with 3-D Printing Technology" by Mustafa Emre Carkaci and Mustafa Secmen found here:
https://3dprint.com/239566/simulation-and-pla-to-make-lightweight-3d-printed-antenna-prototype/
This antenna is part of a comparative study between a machined horn and a 3D printed horn antenna to see the various tradeoffs of each type.
The WR-62 waveguide is a purchased part and was modeled after a Pasternack part that may have either an N-type (12 GHz) connector or an SMA (18 GHz) connector, however low loss LMR coax is typically thicker, so there is a trade-off between coax size and a small aperture connector.
The (2) shells of the horn are investigated with different conductive paints and thicknesses as well.
Note : the SMA male to N-type female adapter is NOT shown !