An antenna device microstrip patch multifrequency, including a ground plane or power balanced ground and a first conductive layer, performing said conductive layer as the active patch antenna device as a whole, said active patch fed to being least one point of said conductive layer, characterized in that said antenna microstrip patch comprises at least two additional conducting layers acting as patches (2) parasites, such parasitic patches placed underneath said first active patch, to being different levels between said active patch and said plane ground or power balanced land, wherein at least one of the parasitic patches includes a multilevel structure or a space-filling or a combination thereof, and / or wherein the less active patch includes a multilevel structure, a space-filling structure or a combination thereof.
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