A monopole antenna (1) is disclosed. The monopole antenna (1) has a grounding lead and a transmission line (11), which extends along a first direction and a first terminal and a feed terminal (12) has in addition to the earth terminal. The monopole antenna (1) also has a with the first terminal connected first radiator (14) which extends along a second direction perpendicular to the first direction thereof and which is operated in a first frequency range. The first radiator (14) has a part having a width which gradually increases along the second direction. The monopole antenna (1) also has a with the first terminal is connected to the second radiator (15) which extends along a third direction extends very far from the earth terminal, via a first enclosed angle with the transmission line (11), a plurality of bends and is operated in a second frequency range.
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