Hi..I simulated a 2x2 array patch antenna & then I got the equivalent nearfield source (NFS) from it. Both show the same results as expected. The NFS is pointing towards Z-direction & now I am rotating the NFS from 0 to 50 degrees. However, I want to use a symmetry plane to reduce calculation time because I want to enclose this NFS with a radome later. Thus, symmetry is required. However, when using a symmetry plane, I do not get the same results as without symmetry. I have referred to CST online for help on using a symmetry plane but could not solve the problem. In the 1st figure attached, the nearfield source is shown after rotation of 10 degrees to see the farfield in the 3rd figure using the XZ symmetry (Et=0) plane. Also, I have attached the same NFS rotated without using a symmetry plane in the 2nd figure.. As you can see both results are not the same. Can anybody help me with it?
Thanks
