Patent ID: 8981758
Filing Date: 2015-03-17
Classification: G01R

Abstract:
1. A measurement bridge comprising: a reference port; a measurement port; a central output port; and a balun having a first balun input connector and a first and a second balun output connector, wherein the first balun output connector is connected to a first signal path and the second balun output connector is connected to a second signal path, wherein the central output port is connected to the first signal path, wherein the reference port is connected to the second signal path, wherein the electrical parameters of the first signal path and the second signal path are approximately the same, wherein the measurement port joins the first signal path and the second signal path together, wherein a first matching unit is integrated in the connection between the first signal path and the central output port, wherein a second matching unit is integrated between the first and the second signal paths and the measurement port, wherein the first signal path is divided into two signal lines by the integration of the first matching unit, wherein a first signal line connects the first balun output connector to the first matching unit, wherein a second signal line connects the first matching unit to the second matching unit, wherein the first matching unit is integrated for transforming the impedance of the first signal line to an impedance that is approximately the same as the impedance of the central output port, and wherein the second matching unit is integrated for transforming the impedance of the second signal line to an impedance that is approximately the same as the impedance of the measurement port.