Study of a Properties of the Octagonal Microstrip Antenna using Method of Moments (MOM)

Simulation of octagonal microstrip antenna with 2.4 GHz resonant frequency was achieved using the microwave office 2000 program (MWO2000), which is depending on the method of moments (MOM). It has been found that the proposed antenna bandwidth was 4.95%. When the proposed antenna is modified and designed inside the circumference of a circle that its equation .This method led to the design of another shape of the original antenna it is found that the increase in bandwidth has increased 10.13%. The last modifying is made a rectangular slot in the patch of the antenna; it is found that the increase in bandwidth has increased to 11.61%. In this study, was used Polyethylene with dielectric constant =2.25, also the center of the resonant frequency was shifted to a new value.