Suppression of mutual coupling between planar antenna elements of an antenna array

摘要

An antenna element 10, suitable for reducing coupling between adjacent elements, comprises: a radiating element 20 and a grounded conductive element 14 spaced from and enclosing, the said radiating element 20. The grounded conductive element 14 may be connected by at least one conductive post 18 to a reflective ground plane 16. The radiating element 20 and grounded conductive element 14 may be formed by etching copper cladding formed on a dielectric layer 12. The radiating element 20 may be a foursquare antenna. The antenna element 10 may be used in forming an antenna array with beam scanning control means.