MIMO systems (Multiple In - Multiple Out) are the rise of new tele- communication systems. They have the characteristic of generating greater channel capacity with low power transmitters, creating a more efficient use of energy. As the purpose is to provide higher data rate, conventional methods are too limited to improve this, and MIMO systems generate an increase in capacity and reliability, also they promise to be competition for 4G systems improving multiplexing and diversity techniques which helps to increase the transmission rate while maintaining the same power levels of a conventional system. Thus, the study and improvement of techniques for MIMO channel measurements are extremely important to check the reliability of data trans- mission from multiple antennas, modulation techniques as well as the channel capacity. In this work four planar antennas applied to the MIMO system are scaled, simulated and performed by comparing experimental results with simu- lations. Also present the development of a transmitter and a receiver simulated by SystemVue (Agilent) and implemented in VHDL.