I have implemented three RF designs. Two of them work between 3.1 GHz and 6 GHz. One design works at 500 MHz. All of them are integrated in 1.5 mm X 1.5 mm chip. All of them share same supply and ground. What are the possible interference and noises that can occur in implementation?.
If those 3 systems works simultaneous you have to do a "system spur search".
There are some free spur calculator programs on the net but they don't support multiple entries.