help designing a coupler

hello i have an assignment to design a coupler operating at 2.4Ghz. It should have 4 ports and everything should be designed for Zo=50 ohm. the design must be made on Ansoft designer. I haven't studied couplers and dont know how to use ansoft designer. Can somebody help me please!

check david Pozar book ,

and download the ansoft designer SV "student version"

khouly

thanks for the help but i want to know that there is any tool in Ansoft that can help me design a rat-race coupler just like there is a filter tool in Ansoft...

There is no such tool in ansoft designer,even in the newest version.The ansoft designer is easy to use. Try to read the manual and learn to use it.