A communications device, wherein the communications device comprises: a near field communication NFC circuit, configured to process an NFC signal; a non-NFC circuit, configured to process at least one low frequency signal and at least one high frequency signal, wherein both the low frequency signal and the high frequency signal are non-NFC signals; and an antenna structure, wherein the antenna structure is coupled to the NFC circuit and the non-NFC circuit, and the antenna structure comprises a radiator and an antenna grounding part, wherein the NFC circuit and the radiator are coupled by using an NFC feeding path, the NFC feeding path comprises a low-pass circuit, and a connection point of the NFC feeding path and the radiator is a first node; the non-NFC circuit and the radiator are coupled by using a non-NFC feeding path, the non-NFC feeding path comprises a first high-pass circuit and a first capacitor, the first high-pass circuit comprises a second capacitor, a capacitance value of the second capacitor is greater than a capacitance value of the first capacitor, and a connection point of the non-NFC feeding path and the radiator is a second node; the radiator forms a first part between the first node and the second node; the radiator further comprises a second part, a first end of the second part is coupled to the antenna grounding part, a second end of the second part is connected to the first part of the radiator at the first node, an electrical length of the second part is less than a quarter wavelength corresponding to a resonance frequency of the low frequency signal, and the electrical length of the second part is greater than an electrical length of the first part; and the radiator further comprises a third part from the first node to an endpoint of the radiator. a near field communication NFC circuit, configured to process an NFC signal; a non-NFC circuit, configured to process at least one low frequency signal and at least one high frequency signal, wherein both the low frequency signal and the high frequency signal are non-NFC signals; and an antenna structure, wherein the antenna structure is coupled to the NFC circuit and the non-NFC circuit, and the antenna structure comprises a radiator and an antenna grounding part, wherein the NFC circuit and the radiator are coupled by using an NFC feeding path, the NFC feeding path comprises a low-pass circuit, and a connection point of the NFC feeding path and the radiator is a first node; the non-NFC circuit and the radiator are coupled by using a non-NFC feeding path, the non-NFC feeding path comprises a first high-pass circuit and a first capacitor, the first high-pass circuit comprises a second capacitor, a capacitance value of the second capacitor is greater than a capacitance value of the first capacitor, and a connection point of the non-NFC feeding path and the radiator is a second node; the radiator forms a first part between the first node and the second node; the radiator further comprises a second part, a first end of the second part is coupled to the antenna grounding part, a second end of the second part is connected to the first part of the radiator at the first node, an electrical length of the second part is less than a quarter wavelength corresponding to a resonance frequency of the low frequency signal, and the electrical length of the second part is greater than an electrical length of the first part; and the radiator further comprises a third part from the first node to an endpoint of the radiator.