OVERVIEWOF BAND NOTCHING METHODS USED IN UWB ANTENNA
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Abstract
The Federal communication commission (FCC) allocates the 3.1 -10.6 GHz band the ultra-wideband(UWB) applications. But due to some already existing systems such as WiMAX(IEEE802.16:3.3-3.7GHz), C-band satellite communication (3.7-4.2GHz), WLAN (IEEE802.11a: 5.15-5.825GHz), X-band satellite communication (7.25-7.75GHz), ITU(International Telecommunication Union: 8.025-8.4GHz) band causes electromagnetic interference with UWB. So to remove such a interference between UWB and other narrow bands different notching techniques used such as tuning stub, shaped slot, parasitic element, and the fractal geometry. In this paper a comparison will be done between these techniques.
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