Patent ID: 11913987
Assignee: ADVANTEST CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The automated test equipment according to claim 5, wherein the loopback is a first loopback carrying signal transmission between the first and second radio frequency ports in a first direction, and wherein the automated test equipment further comprises: a second loopback carrying signal transmission between the first and second radio frequency ports in a second direction opposite to the first direction, and wherein the first switch is operable to couple the first radio frequency port to a first end of the second loopback and when the first switch is set in a third switching state, and wherein the second switch is operable to couple the second radio frequency port to a second end of the second loopback when the second switch is set in a third switching state, and wherein a loopback signal path is formed between the first and second radio frequency ports when the first and second switches are set in the third switching state.