A simple conducting wire for decoupling neighbouring antennas

This communication deals with the radio-electric compatibility of antennas installed on a same platform, more precisely, on a same wall plane. These antennas, associated with various communication systems on board a vehicle (such as a ship) have to be compact and installed in a limited area. Antennas´s ground plane is a limiting factor since a too small one may limit antenna performances. On the other hand, antennas must be appropriately separated to avoid coupling between them. First, we examine the design of a compact ground plane of a monopole antenna and then of a patch antenna Then, this paper investigates the role of a simple conducting wire as a solution to decouple patch antennas without significantly influencing their radiation pattern.