A microstrip differential power divider

A microstrip differential power divider, composed by one balanced-to-single-ended out-of-phase power divider and two Wilkinson power dividers, is proposed in this paper. The proposed power divider has compact size, and can achieve differential-mode power division, isolation between output ports and common-mode suppression. A prototype of the proposed power divider is fabricated, and the measured results consist well with the simulated ones.