Communications device

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 a low frequency signal and a 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, 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.