A method for measuring a common mode current (Icm) in an outer conductor of a shielded electrical connector comprising also at least one inner conductor which includes the steps of interconnecting the one inner conductor and the outer conductor at a junction point to a power source and supplying a current (Icm) to the junction point draining substantially all common mode current (Icm) from the outer conductor at the opposite side of the connector by means of a low impedance drain; and sensing the drained common mode current (Icm) with a current sensing device.

Coaxial connector provided with a body (20) of electroconductive material which extends in the casing (1) of the connector between the connection ends (18, 19) and is electrically separated therefrom. The body (20) functions as a capacitive coupling medium between the connection ends (18, 19) and thus influences the electrical connection impedance of the connector. Because a body of magnetic material (21) is accommodated at the same time, an inductive coupling can be provided and frequency-dependent impedance matching is possible.

A method for measuring a common mode current (Icm) in an outer conductor of a device comprising also at least one inner conductor which includes the steps of interconnecting the one inner conductor and the outer conductor at a junction point to a power source and supplying a current (Icm) to the junction point draining substantially all common mode current (Icm) from the outer conductor at the opposite side of the device by means of a low impedance drain; and sensing the drained common mode current (Icm) with a current sensor.