In this paper, a new Wilkinson Power Divider (WPD) using open and short stubs is proposed. Open and short stubs are utilized instead of 1/4 wave transmission lines in initial structure to achieve harmonics suppression. The proposed WPD is designed for operational frequency of 0.9 GHz and creates 3 transmission zeros at 1.8 GHz, 2.7 GHz and 3.6 GHz, for suppressing second, third and fourth harmonics. The proposed WPD has been fabricated and the measurement results are in good accordance with simulation results. The designed WPD has a 22 % fractional bandwidth with 0.1 dB insertion loss.
