Abstract: This application provides a communication device. The communication device includes 2n radio frequency channels, and includes a digital unit, a topology network unit, and a beamforming unit, the topology network unit is connected between the digital unit and the beamforming unit, and the topology network unit includes a first power divider and a second power divider. The first power divider and the second power divider each include 2n splitting ports and one combining port, the splitting ports of the first power divider are respectively connected to the 2n radio frequency channels on a digital unit side, the combining port of the first power divider is connected to the combining port of the second power divider, and the splitting ports of the second power divider are connected to the 2n radio frequency channels on a beamforming unit side. n is a natural number and n?1.