A New Dual Band Balanced-to-Balanced Power Divider

In this paper, a new dual band balanced-to-balanced power divider is proposed. By using the dual frequency 90 - phase shifter based T model, the proposed balanced-to-balanced power divider can be deduced. By using the method in our previous work, the dual band balanced-to-balanced power divider could be designed with 1 : 1 power division. This balanced-to-balanced power divider is implemented on microstrip structure. Comparing the results calculated in analytical method with that simulated by the full-wave electromagnetic simulator, and that measured by the network analyzer, the flnal results show that they have a good mixed mode performance. The pass band 1 is from 2.395GHz to 2.550GHz, and the pass band 2 is from 5.245GHz to 5.30GHz. The maximum isolations for pass band 1 and pass band 2 are 17.8dB and 17.6dB, respectively.