Trapezoidal antenna with triple band-notched for UWB applications

We have proposed a novel compact microstrip-fed triple band-notched UWB monopole Aantenna. The designed antenna has a microstrip fed trapezoidal radiating patch and three identical square split ring resonators. Notch bands around the 3.3–3.8 GHz WiMAX and 5.15–5.85 GHz WLAN frequencies are obtained by etching three identical complementary square split ring resonators (CSRRs) in the radiation patch of different dimensions of the antenna. Notch bands around the 7.9–8.4 GHz X-band frequencies is obtained by placing two rectangular split-ring resonators(SRRs) near the feedline-patch junction of the antenna. The designed antenna has the figure-of-eight radiation pattern, wide bandwidth, and negligible dispersion over the operating frequency band. Details of the proposed antenna design and the simulated and measured results are presented and discussed.