A Dual Band Gysel Power Divider with Wide Band Ratio

In this paper a dual band Gysel power divider (GPD) with wide band ratio operating capability has been proposed. It has been developed by replacing each λ/4 transmission line of the traditional GPD by the dual-band λ/4 transmission line. In order to validate the approach a dual band GPD for 1.0 GHz and 5.0GHz operating frequencies has been developed and tested. Compared to the existing GPDs in the literature, the proposed GPD is novel in terms of its working band ratio (3.25-11.25).