Making multi-port broadband structural HF antennas out of naval superstructures

This paper introduces the concept of multipurpose structural antenna system for shipborne installations. By combining properly shaped and loaded wire radiators together with an existing naval superstructure, such as the funnel or a big mast, it is possible to achieve a broadband HF compact radiating system which permits to handle both sea-wave and Near Vertical Incidence sky-wave communications with some degree of control over the radiation pattern.