Abstract: To achieve wide band-ratio Wilkinson power with simple construction, this paper introduces a new type of structure based on researching of the odd-even mode analysis, which parallels the open-circuit stub at each output port.Firstly, according to the odd-even mode analysis, the equations of the design circuit are obtained.Secondly, using Matlab solves equations to obtain the design parameters to design the Wilkinson power divider with wide-range frequency ratio (2.0~6.0) .To verify the proposed design method, a Wilkinson power divider operating at 870/2140MHz base station bands is simulated and fabricated.Measured results show that the designed dual-band power divider has a good performance at the two working bands, and the measurements have a good agreement with the simulation results.It means the design method is feasible.