Effect of loading strip and U slot on the performance of trisul shape UWB antenna

An ultra-wide band (UWB) monopole antenna with a band-notch characteristic is presented which needs only two parameters to tune the notch frequency. The proposed monopole antenna is embedded with loading strip, whose length is determined by parametric study. By adjusting the loading strip length and width, the notched frequency bandwidth the antenna´s operating bandwidth can be easily controlled. The time-domain behaviors are discussed. The antenna is suitable for operating frequency of 7.5 GHz. It is shown that return loss of the antenna at 7.5 GHz is better than -10 dB. The VSWR obtained is less than 2. Details of the proposed antenna design and measured results are discussed.