Let me put a comment on your tools..
Altium is not a suitable PCB design program for mmWave or Microwave Circuit PCBs.
Cadence Allegro+RF option will be your first choice..( see the features )
ADS can also handle the design of mmWave PCBs, no doubt.
RF and Microwave PCB design needs an extra attention while it's designed.Everything must be well/precisely dimensioned and components ( inductors,capacitors and the others) must be carefully and independently designed then assembled with a highly precision.Then EM simulation with/wo active devices is a MUST.
If it's possible, 3D FDTD simulation will help you to solve 3D circuits' problems.
There are many other options ( closures,EMI,Biasing,Radiation etc.) unfortunately there is no textbook that explains all of tricky ways AFAIK.You should search and dig the internet to find the right information.