results and discussion

Figure 8 shows the fabricated prototype of the proposed UWB notch antenna. The proposed UWB notch antenna is fabricated on the FR4_epoxy substrate with dielectric constant εr =4.4 and height h =1.6 mm. The antenna parameters such as reflection coefficient (|S11|) and gain of the proposed antenna is measured with the help of a Rohde & Schwarz vector network analyzer (VNA) of range 1GHz to 20GHz.