A Novel CPW-Fed Semi-Circular Triangular Antenna with Modified Ground Plane for Super Ultra Wide Band (UWB) Applications

In this letter, we present a novel compact coplanar waveguide-fed CPW-Fed printed monopole antenna for super high Ultra Wide Band (UWB) communication applications. To obtain UWB and to have an effect on the improvement of the bandwidth of the antenna, two modifications are introduced, the first one is to print two symmetric semi-elliptical shaped in the same side with the radiating element and the second one is to modify the triangular patch antenna to be semi-circular triangular antenna. The bandwidth of the proposed antenna is from 4.9-25 GHz. The average gain of the proposed structure is 4 dBi. Both the CST microwave and HFSS 3-D EM solver are implemented for design and simulation. To validate the obtained transient analysis results, the prototype of the proposed design is fabricated, tested and measured. The experimental results show an acceptable agreement with the simulation.