In this paper the design of a Yagi microstrip antenna will be done. Two well know design techniques will be analyzed: tables and mathematical equations. The design of microstrip antennas is compact, lightweight and relatively cheap. The material selection is overriding and the RO4003c substrate has been chosen due to its satisfactory operation at 5.8 GHz. Later tests are carried out in an anechoic chamber assembled to operate from DC to 10 GHz. Finally antenna parameters such as directivity, impedance, VSWR, return losses and radiation pattern are determined.