A novel Gysel power divider with arbitrary power ratio for high-power application

A novel Gysel power divider with arbitrary power ratio for high-power application is presented in this paper. The power dividing ratio can be conveniently assigned by controlling the length of two branch lines without any changes in other branches. The characteristics of all the transmission lines in this divider are fixed to the same value based on the theoretical analysis, which will simplify the design procedure of unequal Gysel power. Besides, the power ratio in this Gysel power divider can be designed from 0 to ∞ without employing high impedance transmission line, which is unrealized in the conventional Gysel power divider. In order to evaluate the performance of the novel Gysel power divider, two dividers with dividing ratios of 2:1 and 4:1 are fabricated and examined. From the results it can be observed that there is excellent agreement between the simulated and measured results.