Baum Ship Platform for HF/VHF Arrays

Article was published in Sensor and Simulation Notes. — Note 383. — 1995. — 15 p.In order to transmit and receive electromagnetic waves as a surface wave over the ocean and scan the beam in azimuth as a radar one can design arrays of antennas on a ship. The frequencies of interest for such surface waves and for some targets of interest near the ocean surface lie in the HF,and VHF bands. Such arrays can be mounted on the deck, hull, and/or gunwale, with various reIative advantages and disadvantages for each. Considerations include the directioml characteristics of the array elements to minimize interference from sources and scatterers on the ship, efficiency in transmission and/or reception, and interaction with the ocean environment.