A miniaturized dual-frequency Wilkinson power divider using planar artificial transmission lines

In this paper, an arbitrary dual-frequency Wilkinson power divider using planar artificial transmission lines has been designed, fabricated, and measured. The results demonstrate that after such a method has been used the size of dual-frequency Wilkinson power divider can be reduced to be only 50% of the traditional power divider. Both simulations and measurements show that such a dual-frequency Wilkinson power divider has good performance of S-Parameters, which include an equal power split, impedance matching at all ports, and a good isolation between the two output ports at two arbitrary frequencies simultaneously.