In recent years, microstrip and printed antennas are widely used in order to fulfill the commercial needs. The emergence of wireless applications requires compact antenna easy manufacture. The purpose of this project is to design of dual band microstrip loop antenna for wireless applications with a reduction in size. The aim of this antenna was to operate from 2 GHz to 4 GHz. Initiated as an update of Bahl and Bhartia's 1980 work, Microstrip Antennas, this resource for designers took on a new form completely to accommodate the field's many new developments. It emphasizes design approaches that have lasting value among the full-wave techniques; these approaches for various antenna types center around cavity model analysis, chosen as a good compromise between. For microstrip, the guided wavelength is: ϵeff depends on the trace width (w), height between the signal trace and ground plane (h), and ϵr. For the same material, the signals will propagate faster in the microstrip than in the stripline. Propagation delay comparison for microstrips and striplines of the same length.