Abstract
Recently wireless Universal Serial Bus (USB) system using Ultra Wide Band (UWB) technique is discussed. This time, we targeted to develop the antenna for UWB unit whose size is as same as the general USB stick memory size. This paper shows the small and wide band antenna made of the printed circuit board and its performance. The small UWB antenna which we proposed consists of four triangular elements on the front and the back sides of the printed circuit board. Its total size including the ground area is 10mm by 45mm. In this case, the ground area is used as a ground of antenna and the mounting area of LSI for UWB if LSI is realized in the size less than 10mm by 25mm. In terms of the antenna performance, VSWR has achieved less than 1.8 in the band from 3.1GHz to 4.8GHz which is the first applicable band for Wireless USB.
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