The invention discloses a monopole antenna for assembly within a wireless communication device to transmit and exchange data signals. The monopole antenna includes a main body, a feed portion, a grounding portion, a first transmitting body and a second transmitting body. The feed portion and the grounding portion are disposed on the main body. A first transmitting body is a high frequency path extending outwardly from the main body and a second transmitting body is a low frequency path extending outwardly from the main body.