The present invention refers to an antenna (1) for detecting electromagnetic waves. Said antenna (1) preferably comprises at least a first branch (30) for detecting electromagnetic waves, wherein said first branch (30) comprises at least a first detection element (4) and a second detection element (6), wherein the first detection element (4) and the second detection element (6) are physically connected with each other, an actuation means (5) for pivoting the second detection element (6) with respect to the first detection element (4) and a processor means (2) for operating the actuation means (5) in dependency of the detected electromagnetic waves or in dependency of radiation data, wherein the processor means (2) is connected to the first branch (30).