Hello, i have a a branch line coupler shown bellow ,from the logic we have one output port larger by 90 degrees then the other.
a second stage was connected as shown bellow so our input power will be divided by 4.
between ports 2 and 3 we have 90 degrees and between 4 and 5 we have 90 degrees.
after splitting my input power by four i wan to recombine it back.
looking at the basic structure of the branchline coupler,and the phase difference of the ports ,by what phase intuition i can see the proper way to recombine the original signal?
I have one output port with 90 degree phase bigger the the other, so when i connect to it and to his pair a branch line coupler what treatment the 90 degree phase needs to have and what the 0 reference phase need to have ?
Thanks.