N.J. Farsaris, T.J. Lyrantonaki, and P.P. Stavroulakis (Greece)
Antennas. Monopulse. Marine Radio. Troposcatter Links. ABBREVIATIONS: ESA = Electrically Scanned Antenna – or (Phased) Array LBS = Land Based Station MSA= Mechanically Scanned Antenna SBS = Ship Based Station
In this paper, the use of monopulse techniques, similar to those used in tracking or multistatic radars [1], [2] are considered for use in naval troposcatter long-range telecommunications. The objective is the design of high gain, steerable beam, and shipborne antennas able to lock on a distant Land Base Station (LBS). The same procedure may apply to the LBS itself in order to lock on Shipborne Station (SBS). After examination of several types of tracking antennas, the Electrically Scanned Phased Array (ESA) is preferred mainly because of the lack of a heavy steering motor and braking mechanism and its ability of conformal installation in any large or medium sized ship. The innovation proposed is the use of ESA monopulse antennas for communication rather than target detection and tracking purposes thus proving that technology intended originally for military purposes might find other applications. Compared to existing communication systems this will give better communication flexibility and independence where it is essential.
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