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A novel fan shaped UWB antenna with band notch for WLAN using a simple parasitic slit

ABSTRACT A novel fan shaped Ultrawideband (UWB) antenna with WLAN band-notched characteristic is presented. The antenna consists of a multi circularly slotted patch with a 50 Ω microstrip feed line and with a modified ground plane. The overall size of the antenna is 24 × 30 mm2 and operates over the frequency range in between 2.99 and 16.62 GHz for Voltage Standing Wave Ratio (VSWR) < 2, except for the notched band in between 5 and 5.85 GHz (WLAN). To create notch band, an inverted U-shaped parasitic slit is etched out above the partial ground plane. A good agreement is achieved between the simulated and measured results of the proposed antenna and proved to be a potential candidate for UWB portable devices.