E shaped antenna surrounded with u shape

In this work we designed, simulated, fabricated and measured E-shape microstrip patch antenna. In the process of design, we surrounded E-shape patch antenna with “U” figure. As a result of this work, resonance frequency is 4.27 GHz and S11 is -9.69 dB and gain is 7.22 dB. Parametric study on different gap lengths between E and U shaped metals was studied. This antenna design is an improvement from last years research published in Aces conference 2016.