Trapezoid Ultra Wide Band Patch Antenna

1. the art that the invention defined in the claims The present invention will on a UWB patch antenna of the trapezoidal shape. 2. The invention attempts to solve the technical challenges The present invention provides an ultra wideband antenna having a trapezoidal-shaped patch, the matching stub, CPW feed way and a notch characteristic at 5GHz WLAN band (5.15-5.35GHz) by using a rectangular slot, having a compact, light weight, wide band characteristics of the low-cost for that purpose. 3. Resolution of the subject matter of the invention, The present invention according to the second broadband patch antenna of a trapezoidal shape, a dielectric substrate, a trapezoidal patch of the trapezoidal shape is located at the top center line of the upper surface of the dielectric substrate and located in the lower portion of the trapezoidal patches to implement the notch characteristic in a predetermined frequency band for slot, the dielectric substrate upper surface of the power feeding means located on the center line of the lower feeding to the trapezoidal patch of the trapezoidal patch and the power supply means of the matching means and the upper surface of the dielectric substrate for matching the impedance placed between the power supply means of including a grounding means on the side. 4. An important use of the invention, The invention yiyongdoem like UWB antenna system. UWB antenna, CPW (Coplanar Waveguide), UWB (Ultra-Wide Band), a via hole