How to design 180 Degree Rat-Race coupler in Agilent ADS 2008

Hi,

I need to design a 180 Degree Rat-Race coupler with Rogers R4360 substrate in Agilent ADS 2008. Can anyone help me how to design the coupler? It will be a great help for me if anyone can give me a schematic diagram of 180 Degree coupler in Agilent ADS 2008. So that I can play with it. Thank You. My email address is fadubhai@yahoo.com

Look at "Passive Circuit DG- Microstrip Circuit" in the component palette at left hand side..
Pull out the designed structure, design it and optimize it by using Design Guide.
Don't forget to simulate in Momentum..

Ok, Bigboss I will try the way you said. Thanks a lot