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The design of a compact micro strip line-fed Ultra-Wideband (UWB) monopole antenna with a notched-band characteristic is presented in this letter. The rejection frequency band occurs around 5- 6 GHz, which is appropriate for wireless local area network (WLAN) applications and is obtained by a split-ring resonator on the antenna ground. The proposed antenna is printed on FR4 substrate material with a dielectric constant of 4.4. The dimension of the proposed antenna is 24×16×0.8 mm 3 . Radiating patch has a combined geometry realized by a half-circular ring and half-square ring. To achieve a proper impedance matching and increased bandwidth with (Voltage standing wave ratio) VSWR ≤ 2, the study made use of an L-shaped element which was connected to the ground; moreover, the researchers added a split-ring resonator onto the ground to obtain one notched band. The comparison of the proposed antenna performance with previously presented UWB monopole antennas, was performed by using Analytic Hierarchy Process (AHP) method. A good agreement was observed between simulated and experimental results. .

A Compact UWB Monopole Antenna with Rejected WLAN Band using Split-Ring Resonator and Assessed by Analytic Hierarchy Process Method