yellowtooth
Full Member level 3
Recently, I met a problem that the return loss is not as good as expected.
Maybe the connector on our PCB is not 50ohm.
One port of the connector is N type, the other port is not standard type, something like coaxial cable.
And I cannot connect two connectors together to form a two N type ended connector.
So I can only connect one of them to the vector network analyzer's prot1 to measure S11 or Zin. While the other port is just let open ended.
I wonder how to know if it has 50ohm characteristic impedance.
Please tell me if you know.
thank U.
Maybe the connector on our PCB is not 50ohm.
One port of the connector is N type, the other port is not standard type, something like coaxial cable.
And I cannot connect two connectors together to form a two N type ended connector.
So I can only connect one of them to the vector network analyzer's prot1 to measure S11 or Zin. While the other port is just let open ended.
I wonder how to know if it has 50ohm characteristic impedance.
Please tell me if you know.
thank U.