Fig. 8 Fabricated prototype of the proposed antenna.
Figure9 shows the simulated, measured and equivalent circuit simulated reflection coefficient (|S11|) of the proposed UWB notch antenna. The simulated bandwidth of the proposed UWB notch antenna extends from 3.09 GHz to 13.32 GHz with the impedance bandwidth of 10.23 GHz. The measured reflection coefficient (|S11|) of the proposed UWB notch antenna is in very much accordance with its simulated counterpart. The measured bandwidth of the proposed antenna extends from 2.7 GHz to 13.4 GHz with the impedance bandwidth of 10.7 GHz. This high impedance bandwidth of the measured reflection coefficient (|S11|) of the proposed antenna depicts the proper impedance matching of the appropriate fabricated prototype of the proposed antenna. In figure 9 the reflection coefficient (|S11|) due to the equivalent circuit is also compared with the simulated and measured reflection coefficient (|S11|) of the proposed antenna. The reflection coefficient (|S11|) due to the equivalent circuit is matched highly with the simulated and measured reflection coefficient having the bandwidth extending from 3.10 GHz to 13.3 GHz with the impedance bandwidth extended from 10.2 GHz. Hence in overall reflection coefficients (|S11|) of the simulated, measured and equivalent circuit simulated are in excellent correlation with each other exhibits proper simulation, fabrication of the proposed UWB notch antenna.