Patent ID: 9337527
Filing Date: 2016-05-10
CPC Classification: H01Q

Claim Text:
1. A mobile communication terminal, comprising: an outer shell in the general form of a parallelepiped, and comprising at least a generally planar, generally rectangular back panel, and top, bottom, left side and right side panels defining an interior shell volume; a substantially rectangular main board located within the interior shell volume and having a major back surface facing the interior of the back panel of the shell, and a major front surface opposite said major back surface, and top and bottom ends, respectively, adjacent said top and bottom panels of said shell; said main board having a transmitting circuit and a receiving circuit thereon; a main backfire antenna element adjacent to the bottom end of the main board, and coupled to the transmitting circuit and the receiving circuit; and a backfire resonator array located within the shell at the back surface of the main board and coupled to the main board and the main antenna element, whereby the backfire resonator array is fed by the main board from a position on the main board located away from the center of the main board, the backfire resonator array comprising first and second backfire resonators, a first distance between an upper end of the first backfire resonator and the top end of the main board is larger than a second distance between the main antenna element and a bottom end of the first backfire resonator, and a third distance between an upper end of the second backfire resonator and the top end of the main board is smaller than a fourth distance between the main antenna element and a lower end of the second backfire resonator, and the first backfire resonator is fed by the main board from a first position on the main board adjacent to the bottom end of the main board through capacitive coupling or single feed coupling, and the second backfire resonator is fed by the main board from a second position on the main board adjacent to the top end of the main board through a dual feed coupling.