Device for suppressing wireless signal interference and communication base station

The invention discloses a device for suppressing wireless signal interference and a communication base station. The method comprises the steps that the device is installed on an antenna of a communication base station and comprises a signal shielding module and a connecting part, and the signal shielding module comprises a cavity structure with a notch and can achieve at least one of the following functions that the strength of a wireless signal transmitted by the communication base station through the antenna is weakened; weakening the intensity of the wireless signal received by the communication base station and refracted by the atmospheric waveguide layer for multiple times; and the connecting part comprises a cuboid structure with a gap and is used for connecting the cavity structure to an antenna of the communication base station. The technical problems that the wireless access performance of a 5G base station is reduced, the uplink and downlink rates of the base station are reduced and the switching pe