The Wilkinson power divider is one of the most commonly used
components in wireless communication system for power division
and/or combination. The Wilkinson power divider was invented in
1960 [1] and has completely matched output ports with sufficiently
high isolation between them. The power divider consists of two
(
/4) branches of transmission line and a termination resistor of
100 , where
is the wavelength of the transmission line.This article 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
-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.