A coplanar patch antenna is formed, e.g as a printed circuit, on a dielectric support (1) by a metal patch (2) spaced from a coplanar ground plane (3) by a peripheral slot (4), and in the improvement is series fed by means of a slot line (5). The slot (4) can be made resonant by having a periphery of...http://www.google.fr/patents/US4873529?utm_source=gb-gplus-shareBrevet US4873529 - Coplanar patch antenna