Three possibilities have been used.
First : the inner conductor of a feeding coaxial cable with a voltage source and the horn's entire geometry.
Second : a waveguide source and the entire geometry.
Third : the quarter of the geometry (using E and H symmetry planes) and the waveguide source.
Appendix 1 : a reflector in front of the horn, with the half of the geometry.
Appendix 2 : a Physical Optics reflector in front of the horn, with the half of the geometry.
Copyright © 2015, IEEA