Wideband Single-Ended-to-Balanced Power Divider With Intrinsic Common-Mode Suppression

In this letter, a wideband single-ended-to-balanced power divider (PD) with intrinsic common-mode (CM) suppression is presented. By introducing the hybrid microstrip/slotline structure, the CM signals can be naturally rejected. Under the differential-mode excitation, the feature of power division can be realized. The even/odd-mode equivalent circuits of the proposed PD are analyzed to guide the design. A practical PD is designed, simulated, and measured to verify the design method.