UHF RFID (Ultra High Frequency-Radio Frequency Identification Device) antenna demultiplexer

The invention relates to a UHF RFID (Ultra High Frequency-Radio Frequency Identification Device) antenna demultiplexer which is characterized by comprising a reader/writer radio frequency input port, an antenna radio frequency port, a radio frequency switch matrix unit, an MCU (Microprogrammed Control Unit), a clock unit, a storage unit, an interface unit, an antenna indicating unit and a power supply interface, wherein the power supply interface supplies power to the antenna demultiplexer; the reader/writer radio frequency input port is connected with a radio frequency input port of the radio frequency switch matrix unit, and all radio frequency output ports of the radio frequency switch matrix unit are respectively connected with a plurality of antennas; the clock unit supplies clock signals to the MCU; the MCU is connected with the storage unit; the antenna indicating unit is used for indicating the working state of the antenna ports in the radio frequency switch matrix unit; and the interface unit compris