The book covers three aspects of Microstrip antenna design. The first part is the introduction to Microstrip antenna. The Second part covers design of (I) Rectangular patch Microstrip antenna which operates at the central frequency of 9.6 GHz & 11.6 GHz & (II) Triangular patch Microstrip antenna which operates at the central frequency of 2.4 GHz & 7.4 GHz. (I) The design parameters for single element of rectangular patch antenna have been calculated from the transmission line model equation and then extended the antenna design to Dual Band rectangular Microstrip patch antenna using the slot along the non radiating edges. To enhance the bandwidth at central frequency insertion of slots technique is used (II) In second design, parameters for single element of triangular patch antenna have been calculated from the transmission line model equation and then extended the antenna design to Dual Band triangular Microstrip patch antenna using the slot in the radiating triangular patch. Toenhance the Gain at central frequency modification of ground plane technique is used. The antenna has been modeled, designed, simulated, fabricated & tested.