Backscattering optimization on RFID tags with multiple RF ports

A system with a double multiplier is presented, it has been shown that this kind of system allows to increase the communication range. In the presented technology the system could work with a power of 1dB lower than standard system and this result could be more important in others technologies. Feasibility of antennas which are compliant with two ports chip is established. The double antenna present a worth matching in comparison with standard antenna, but its gain is more important.