A wireless communication device (100, 700, 800), comprising: an antenna (110, 710, 810); a main board (120, 720, 820), comprising a ground part (721, 821) and at least one conductive part (723, 823), wherein the ground part (721, 821) is connected to the antenna (110, 710, 810) and the at least one conductive part (723, 823) is independent of the ground part (721, 821); at least one matching network (130, 730, 830), connected to the ground part (721, 821); and a USB connector (140, 740, 840), comprising a shell (142, 742, 842) and at least one first pin (141, 741, 841) extending from the shell (142, 742, 842), wherein the at least one first pin (141, 741, 841) is connected to the at least one matching network (130, 730, 830), and the at least one first pin (141, 741, 841) is connected to the at least one matching network (130, 730, 830) in a one-to-one corresponding manner, and the number of the at least one matching network (130, 730, 830) is the same as the number of the at least one first pin (141, 741, 841); wherein the at least one conductive part (723, 823) is configured to connect the at least one first pin (141, 741, 841) to at the least one matching network (130, 730, 830), and the at least one conductive part (723, 823) is one-to-one corresponding to the at least one matching network (130, 730, 830) and the number of the at least one conductive part (723, 823) is equal to the number of the at least one matching network (130, 730, 830); or the main board comprises one conductive part (723, 823, 1023) that is configured to connect at least two first pins (1041, 1043) of the at least one first pin (141, 741, 841, 1041, 1043) to at least two matching networks (1031, 1032) of the at least one matching network (130, 730, 830, 1030), and the conductive part (723, 823, 1023) is corresponding to the at least two matching networks (1031, 1032); characterized in that an edge which is of the at least one conductive part and is adjacent to the ground part and an edge which is of the ground part and is adj acent to the at least one conductive part each has an arc shape. an antenna (110, 710, 810); a main board (120, 720, 820), comprising a ground part (721, 821) and at least one conductive part (723, 823), wherein the ground part (721, 821) is connected to the antenna (110, 710, 810) and the at least one conductive part (723, 823) is independent of the ground part (721, 821); at least one matching network (130, 730, 830), connected to the ground part (721, 821); and a USB connector (140, 740, 840), comprising a shell (142, 742, 842) and at least one first pin (141, 741, 841) extending from the shell (142, 742, 842), wherein the at least one first pin (141, 741, 841) is connected to the at least one matching network (130, 730, 830), and the at least one first pin (141, 741, 841) is connected to the at least one matching network (130, 730, 830) in a one-to-one corresponding manner, and the number of the at least one matching network (130, 730, 830) is the same as the number of the at least one first pin (141, 741, 841); wherein the at least one conductive part (723, 823) is configured to connect the at least one first pin (141, 741, 841) to at the least one matching network (130, 730, 830), and the at least one conductive part (723, 823) is one-to-one corresponding to the at least one matching network (130, 730, 830) and the number of the at least one conductive part (723, 823) is equal to the number of the at least one matching network (130, 730, 830); or the main board comprises one conductive part (723, 823, 1023) that is configured to connect at least two first pins (1041, 1043) of the at least one first pin (141, 741, 841, 1041, 1043) to at least two matching networks (1031, 1032) of the at least one matching network (130, 730, 830, 1030), and the conductive part (723, 823, 1023) is corresponding to the at least two matching networks (1031, 1032); characterized in that an edge which is of the at least one conductive part and is adjacent to the ground part and an edge which is of the ground part and is adj acent to the at least one conductive part each has an arc shape.