Compact dual band Wilkinson power divider

This paper presents the design of a compact Wilkinson power divider for dual applications. The design is accomplished by transforming the length and impedance of the quarter wave sections of the conventional Wilkinson power divider into dual band Pi-shaped sections. Simple design equations for basic design geometry are given. The dual band power divider geometry is analyzed using EM simulator and then realized at 1.8 and 4.775 GHz.