Wideband Filtering Power Divider With Embedded Transversal Signal-Interference Sections

By exploring embedding transversal signal-interference sections in a Wilkinson power divider, this letter proposes a novel methodology for the filter and power divider co-design. The structure realizes simultaneous power division and filtering in a single uniplanar circuit. In this letter, the equations as well as the detailed design methodology are given. In the last section, simulations and experiments are carried out, the results of which show a filtering power-division performance with 90% bandwidth (15-dB return loss) and two transmission zeros at the passband edges.