The gain improvement of a patch antenna by using double E-shaped patch has been proposed in this research. Due to its low permittivity of 0.02 and low dielectric constant of 1.45, felt is used as the substrate for the antenna. The proposed research work aims in designing a low-cost antenna that is flexible with performance enhancement and suits all wireless applications. The proposed antenna with felt substrate is simulated and the parameters are analysed with different structures at the frequency of 5.64 GHz. The result shows that there is a gain enhancement (8.270 dBi) in the final structure designed, and thus the antenna design is appropriate for wireless applications.