A monopole antenna assembly mounted onto a bracket (2) of an electronic device includes an electronic connector (1) having a long contact (12) extending outwardly. The long contact acts as a radiating element of a monopole antenna. The long contact can be easily obtained by modifying the size of contact in stamping process. The connector electrically and mechanically cooperates with a socket, such as a female connector, of the electronic device. Thus an electrical path is formed between the monopole antenna and the electrical device via connector and the socket.