Abstract A power divider is a three-port microwave device that is used for power division or power combining. They are reciprocal devices, i.e. they can also be used to combine the power from output ports into the input port. The power dividers are widely used in microwave circuit designs. Indeed, this paper describes the design and simulation of 2:1 power divider at 3.6 GHz (802.11y) frequency for Wireless Local Area Network (WLAN) applications using Advanced Design System software (ADS). This device provides maximum isolation among three ports. It is highly advantageous for limited bandwidth applications. The Wilkinson Power Divider can also be manufactured with distribution of unequal powers. Therefore, in this article a conception of a Wilkinson unequal Power Divider is presented and our interest is a ratio of 2:1 at central frequency of about 3.6 GHz.