I am trying to run an antenna copper trace from an sm5100b cellular module to an sma conector off my board. I did that here:
And it didnt work, I've heard you need some components on the trace. Does anyone know how to do this?
It is a very complex thing trying to match the impedance of a connector at both ends. It is not something you can do without some quite expensive test equipment. Sadly it is not a simple matter of following instructions because of all the parasitic capacitance and inductance involved at these frequencies.
My best guess would be to use 50-ohm coax from the board to the SMA connector.
@ Mike
What kind of equipment would I need? is there a wesite that you know of that could give me some guidance in this matter?
Well a good spectrum analyser would probably do it, one that goes to around 10GHz.
However an RF engineer is quite a specialist job. I have had to manage several of them in the past and they are a bit of a breed apart.
Depending on how much you want to do this I would advise getting one in as a contractor.
Alternatively some specialist radio hams might have the skills to do it for you.
Okay thank you for the advice, ill look into that.