A communications apparatus, comprising a phase correction unit , a first radio frequency channel , a first analog bridge , a second radio frequency channel , and a second analog bridge , wherein the first analog bridge comprises a first input end and at least two first output ends , the first input end is connected to the first radio frequency channel , and each first output end is connected to one first antenna array ; the second analog bridge comprises a second input end and at least two second output ends , the second input end is connected to the second radio frequency channel , and each second output end is connected to one second antenna array ; the first analog bridge is configured to receive a first signal at the first input end from the first radio frequency channel , to divide the first signal into at least two channels of first sub-signals, and to respectively output the at least two channels of first sub-signals from the at least two first output ends to at least two first antenna arrays ; the second analog bridge is configured to receive a second signal at the second input end from the second radio frequency channel , to divide the second signal into at least two channels of second sub-signals, and to respectively output the at least two channels of second sub-signals from the at least two second output ends to at least two second antenna arrays ; and the communication apparatus is configured such that a first channel of first sub-signal in the at least two channels of first sub-signals and a first channel of second sub-signal in the at least two channels of second sub-signals are separately coupled to the phase correction unit by using a respective coupler , and the phase correction unit is configured to send an adjusted signal to a corresponding radio frequency channel, so that a phase of the first channel of first sub-signal is the same as a phase of the first channel of second sub-signal. the first analog bridge comprises a first input end and at least two first output ends , the first input end is connected to the first radio frequency channel , and each first output end is connected to one first antenna array ; the second analog bridge comprises a second input end and at least two second output ends , the second input end is connected to the second radio frequency channel , and each second output end is connected to one second antenna array ; the first analog bridge is configured to receive a first signal at the first input end from the first radio frequency channel , to divide the first signal into at least two channels of first sub-signals, and to respectively output the at least two channels of first sub-signals from the at least two first output ends to at least two first antenna arrays ; the second analog bridge is configured to receive a second signal at the second input end from the second radio frequency channel , to divide the second signal into at least two channels of second sub-signals, and to respectively output the at least two channels of second sub-signals from the at least two second output ends to at least two second antenna arrays ; and the communication apparatus is configured such that a first channel of first sub-signal in the at least two channels of first sub-signals and a first channel of second sub-signal in the at least two channels of second sub-signals are separately coupled to the phase correction unit by using a respective coupler , and the phase correction unit is configured to send an adjusted signal to a corresponding radio frequency channel, so that a phase of the first channel of first sub-signal is the same as a phase of the first channel of second sub-signal. <EOS>