Slit Loaded Rectangular Shaped Monopole Antenna Design with Band Notched Characteristics for Ultra Wide Band Applications

Sneha Mohan[1], Pristin.K.Mathew[1]
Page No. 145-153

In this paper a low cost edge fed printed planar monopole antenna is presented for Ultra Wide
Band (UWB) applications. The proposed antenna exhibits a notching characteristic at the
frequencies 6 GHz to 7.6 GHz and has several rectangular shaped slits which are symmetrical in
nature, placed towards the radiating edges of the patch. The two corners of the patch surface has
been etched to obtain a notching behavior. The antenna is placed on a 1.6mm low cost FR-4
substrate material of dimension 36 mm X 34 mm and has a partial ground plane below it. The
proposed antenna exhibits an Omni-directional radiation pattern and has a wide impedance
bandwidth of about 50% in the frequency range 3.6 GHz to 6 GHz and 27.2 % in the frequency
range 7.6 GHz to 10 GHz. The proposed antenna has been designed and simulated using an
Method of Moment (M.O.M) based Electromagnetic solver, CADFEKO version 5.5. The plots of
various antenna parameters like Return loss, Voltage Standing Wave Ratio (VSWR), Gain,
Bandwidth etc. of the proposed antenna have been observed.These results clearly indicate that the
proposed antenna exhibits Ultra Wide Band behavior.
Key words: Ultra Wide Band, Monopole, Bandwidth, Band Notching.