Patent ID: 8659485

Claim:
An antenna designing method of a wireless terminal, comprising: on a planar surface of a data card single board of the wireless terminal, dividing a semi-closed area without other metal wirings belonging to a remaining area of the data card single board, wherein the semi-closed area and the remaining area of the data card single board are co-planar to each other on the same planar surface; arranging an entire antenna wiring within the semi-closed area, wherein the entire antenna wiring is co-planar to the same planar surface, wherein: at least one gap exists on the same planar surface between the entire antenna wiring and the remaining area of the data card single board, and at least a portion of the entire antenna wiring is coupled to at least a portion of the remaining area of the data card single board via the at least one gap, and the entire antenna wiring comprises a plurality of co-planar metal traces, wherein each of the plurality of co-planar metal traces orthogonally protrudes out from a co-planar main metal trace to an open end, such that the plurality of orthogonally protruded co-planar metal traces and the co-planar main metal trace form a comb-shape co-planar structure; and cladding a planar metal coupling piece over more than half portion of the entire antenna wiring, wherein: at least another gap exists to space the planar metal coupling piece from the remaining area of the data card single board, and the planar metal coupling piece does not overlap any portion of the remaining area of the data card single board, and the planar metal coupling piece is coupled to a selected portion of the remaining area of the data card single board via the at least another gap in order to realize a second coupling between the entire antenna wiring and the remaining area of the data card single board.