Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods

摘要

Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods are described. According to one aspect, a wireless communication system includes a reader configured to output a first wireless communication signal and to receive a second wireless communication signal comprising a backscatter signal and a remote communication device configured to receive the first wireless communication signal and to communicate the second wireless communication signal comprising the backscatter signal, wherein the remote communication device includes an antenna configured to provide electrical energy, communication circuitry configured to process the received first wireless communication signal and to generate a modulation signal to communicate the backscatter signal and a plurality of power conditioning circuits coupled in series intermediate the antenna and the communication circuitry and individually configured to enhance at least one electrical characteristic of the electrical energy from the antenna.