Antenna apparatus and mobile terminal

A mobile terminal, comprising an antenna apparatus, wherein the antenna apparatus comprising:

• a first feeding part, a second feeding part, a filter matching network, a radiator disposed on a frame of the mobile terminal, a first ground segment, and an extension segment, wherein the filter matching network comprises a first port, a second port, and a third port,
• the first feeding part is electrically connected to the first port, the second feeding part is electrically connected to the second port, and the radiator is electrically connected to the third port;
• wherein the first ground segment is connected between the radiator and a ground, and the extension segment is connected between the radiator and the filter matching network, such that the radiator, the first ground segment and the extension segment form a loop antenna;
• and the antenna apparatus further comprises a first gap and a second gap disposed on the frame, the first gap and the second gap separating the radiator from other portions of the frame;
• and
• wherein the first feeding part and the second feeding part are configured to separately transmit a first signal and a second signal of different frequencies to the filter matching network via the first port and the second port, respectively, the first signal and the second signal being signals to be sent to the radiator for transmission, and
• the filter matching network is configured to perform filtering on the first signal and the second signal to filter out interferences from one to the other, and feed the first signal and the second signal to the radiator via the third port for transmission of the first signal and the second signal.