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This paper presents a design of compact planer ultra wide band antenna with band notched features. In order to produce a good impedance matching from 3.1GHz to 12GHz, a simple rectangular slot is etched from the ground plan. To reduce the interference with WIMAX applications from 3.3GHz to 3.9GHz, the band notched filter is employed. The band notched characteristics is achieved by inserting a simple...