An Improved UWB Non-Coplanar Power Divider

An improved UWB non-coplanar power divider is presented. Based on the theory of microstrip-to-slotline transition, the principle of this power divider is discussed. To improve the performances of the power divider, a tapered slot and a fan-shaped slot take the place of a circular slot in the circuit design. The simulated and measured results show a progressive return loss of input port.