Abstract

A compact and simple design of Ultra Wideband antenna with band dispensation characteristic is presented in this paper. The size of proposed antenna is 35 mm x 30 mm. The proposed antenna has wide frequency spectrum from 1.5 GHz to 10.9 GHz which covers the complete Ultra Wideband (UWB) range with VSWR less than 2, except for the frequency band 5.14 GHz-5.85 GHz which is allocated for IEEE802.11a WLAN (Wireless Local Area Network) systems. By etching a U-shaped slot and a line slot in rectangular radiating patch, the band rejection for WLAN is created to avoid interference. Parametric study of different shape has been carried out with HFSS simulation software. Simulated results of antenna such as return loss, VSWR, radiation pattern has satisfactory values within desired frequency band

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