Modified Wilkinson power divider for suppression of nth harmonics

A modified network to suppress the nth harmonics in a Wilkinson power divider is presented. The solution has been found by adding transmission lines, whose electrical lengths are determined by using the suppression terms, between two transformers of the traditional design. Experimental results show that the second and third harmonics levels achieved are -45.3 and -46.4 dB, respectively, while the performance of the power divider at the fundamental frequency is maintained.