The manufacture of integrated RF circuits on a semiconductor basis was only made possible by advances in microstrip technology. Planar waveguides have established themselves in a plethora of applications over the last two decades.
Training Concepts:
Characteristic line parameters and transfer function
Scattering parameters and scattering matrix
Transfer functions: Wilkinson divider and directional coupler
Filter design
3rd and 5th order low-pass filters, band-pass, band-stop