Abstract: An antenna module includes radiating elements including a first element and a second element and an RFIC and exchanges signals with a BBIC. The RFIC includes a transmission circuit that supplies radio frequency signals to the radiating elements and a reception circuit that receives radio frequency signals from the radiating elements. The RFIC exchanges intermediate frequency signals with the BBIC. A first intermediate frequency signal is used for communication between the transmission circuit and the BBIC. A second intermediate frequency signal is used for communication between the reception circuit and the BBIC. Assuming a variation in the reception level of a radio frequency signal received by the reception circuit during transmission of a radio frequency signal from the transmission circuit exceeds a predetermined value, the RFIC stops emission of radio waves from the first element.