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The characteristics o f the proposed antennas h ave been investigated through c o m p u t e r simulation for Ultra wideband (UWB) application. The proposed antenna has achieved good impedance matching, consistent gain, stable radiation patterns and consistent group delay over operating frequency band. A coplanar waveguide (CPW)fed ultra wide band antenna i s presented. The UWB antenna consists of a rectangular patch, which is etched onto an FR4 printed circuit board(PCB) with an overall size of 30mmX35mmX1mm. The simulation shows that the UWB antenna achieves good impedance m a t c h i n g , consistent of gain, and enhancing the operating bandwidth. The correlation between the mode-based f i e l d distributions is discussed. Extended from the UWB antenna, three notch designs are also presented as a desirable feature for UWB application at 8.7&10.2GHz.

Design of CPW Band Notch Slot UWB Antenna at 8.7 and 10.2 GHz for Wireless Broadband Applications