The USB memory size broad or multi band antenna using the folded monopole antenna, which is made of the U-shaped metal plate without the wide ground plane, has been successfully developed. The proposed antenna is small in order to be installed in the compact wireless USB-unit and covers the 2.45 GHz band for wireless LAN and the wide band width from 3.1 to 10.6 GHz for UWB. Furthermore, another proposed antenna is having the band notch at 5 GHz band. This paper introduces it's the novel antenna configuration and describes the characteristics of the novel folded USB memory size antenna. Details of the simulated results of the proposed antennas are presented and discussed.