I'm working with a six-port circuit (http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6704926 ) and I need to make the analysis in ADS. The circuit has two inputs and four outputs. I made an ideal model and I have to detect the signals power on the outputs. Then, I will add and substract them to process the information and, finally, analyse the results in ideal conditions. The problem is that I can't find an ideal component who works like a square-law power detector. I'm searching in the software documentation and other sources, including the forums but I don't find anything. Someone knows if in ADS exist a component like that? I will be very grateful.