This paper presents the design and implementation of an E-shaped microstrip patch antenna for wireless communication. The antenna features several advantages, including low volume, low profile, easy mounting, lightweight construction, and low fabrication cost. It operates at 3.2 and 3.4 GHz, using an FR4 substrate with a dielectric constant of 4.3 and a thickness of 1.4 mm. The design incorporates two parallel slots to perturb the surface current patch. The E-shaped antenna achieves return losses of -13 dB and -16 dB at the operating frequencies of 3.2 and 3.4 GHz, respectively. The design and simulation were conducted using CST software, with coaxial probe feeding employed. Furthermore, this study investigates the effect of surface roughness on the absorption of the radiation line of the implemented antenna, which was treated using a Nd:YAG laser by bombarding the radiation line of the desired antenna in order to gradually reduce the surface roughness, as this improved the work performance of the antenna at the resonant frequencies of 3.2 and 3.4 GHz. After treatment, the antenna exhibited return losses of -15.7 dB and -20 dB at 3.2 and 3.4 GHz, respectively. These qualities highlight the potential of the Nd:YAG laser-treated inverted E-shaped antenna for enhancing the performance of wireless communication systems.