Patent ID: 8072295

Claim:
A radio frequency (RF) cavity resonator comprising: a resonator chamber for containing an RF field; and an RF coupling loop assembly coupled to the resonator chamber for introducing the RF field into and extracting the RF field from the resonator chamber as an RF carrier signal, wherein the RF coupling loop assembly further comprises: a connector having a first connector interface coupled to an inner conductor and a second connector interface coupled to an outer conductor, the first and second connector interfaces forming a pair when mated, wherein the second connector interface is rotatable about a collinear axis of the connector and the first connector interface is not rotatable about the collinear axis of the connector; a wire loop coupler having a first end coupled to the inner conductor of the connector and a second end coupled to the outer conductor of the connector; and a bandwidth selection element at least partially coupled to the RF coupling loop assembly, wherein in response to the bandwidth selection element being changed from a first bandwidth setting to a second bandwidth setting, the wire loop coupler orientation is movable about the collinear axis of the connector.