I do not have any experience designing RF circuits and I am finding many challenges for my project.
One of them is to match the 50 ohm impedance that some components demand. In the input of my PCB I will have a mixer (RF=10 to 15 GHz, LO=15 GHz and IF=DC to 5GHz), which needs these 50 ohm in the RF, LO and IF pins.
The inputs, RF and LO, will go connected to SMA connectors (is that enough for the required impedance or I have to design the PCB trace to match the 50 ohm?).
The output, IF, needs the load of 50 ohm, which I guess I can get with the PCB trace. The thing is that right after it I'll have a LC low-pass filter at 1 GHz cut-off frequency. Will this 50 ohm transform the filter into a RLC?
All these questions may sound a bit stupid for RF engineers, but for me is very confusing. Everything is so easy in the DC domain..