Abstract
This paper presents a novel dual-band Wilkinson power divider, which contains two symmetric stepped-impedance dual-band inverters. The proposed circuit has very simple structure that only one isolation resistor is used, and is particularly suitable to be designed with large frequency ratio in compact dimensions. Detailed design formulas are derived. For verification, a dual band power divider with frequency ratio of 5.2 is designed and fabricated. The experimental results agree well with the simulation, demonstrating the features.
