SWR bridge configuration enabling extended precision and measurement range when measuring through a precision coax airline

摘要

A microwave test kit including a SWR bridge with one or more accompanying precision airlines for connecting between the test port of the SWR bridge and a test device. The SWR bridge includes a branch opposite its test port which includes an adapter having a connector with a center conductor support bead matching the center conductor support bead used in the precision airlines to compensate for impedance mismatch. The test kit may further include a standard 50 ohm termination and an offset termination, having an impedance other than 50 ohms, with the adapter of the SWR bridge configured to enable a user to selectively connect the standard termination to enable measurements to be made in an error averaging mode, or the offset termination to enable measurements to be made in a magnified mode.