RF Transceiver Circuit FPGA Program Design and Development

As the communication technology is developing rapidly and the communication system and standard are updated constantly, people proposed the concept that the virtual radio is realized through software to achieve the interconnection among equipment. The paper shows the basic structure and module composition of virtual radio RF front-end, highlighting the key technology for hardware design of the whole RF front-end as well as the FPGA local control logic. The hardware, consisting of FPGA module and its control module, is provided with the relative design of circuit diagram. Moreover, the tests on RF front-end board are presented in the paper, proving that the board has favorable commonality to serve as the RF front-end for receiving and sending of wireless signals in software radio system, being used as wireless access card device and wireless system experiment device, and for building the industrial private communication system.