Directional coupler with compensation of direction accuracy with target error adjustment

摘要

The coupler (30) has a first connection (10) for coupling a signal to a second connection (13) with high attenuation, and a third connection (11) for coupling the signal to the second connection with small attenuation. The second connection is connected with a terminating impedance (20). The impedance is dimensioned such that the impedance causes a target error adjustment of the second connection and reflection of portion of the signal at the second connection. The signal applied to the connection and the signal reflected at the connection are interfered in a partially destructive manner.