Patent ID: 7889140
Filing Date: 2011-02-15
Classification: H01Q

Abstract:
1. An ultra-wide band (UWB) antenna applied to a plug-and-play device, the plug-and-play device includes a dielectric substrate having a ground plane, the UWB antenna comprising: a radiating metal plate disposed in a non-ground region of the dielectric substrate and having at least one slit cut formed by at least two cut segments, an opening of the slit cut being at an edge of the radiating metal plate facing the ground plane, wherein the slit cut extends from the edge of the radiating metal plate and into the radiating metal plate towards a short edge of the dielectric substrate and along a longitudinal edge of the dielectric substrate; and a feeding portion disposed on an apex of the radiating metal plate facing the ground plane for feeding a signal to the antenna; wherein the radiating metal plate is disconnected from the ground plane; and the radiating metal plate has two slit cuts on two sides of the feeding portion.