Patent ID: 11927605
Assignee: KEITHLEY INSTRUMENTS, LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A test and measurement instrument switch matrix, comprising:
a first triaxial cable including a center conductor and a guard, the center conductor connected to a first output of the test and measurement instrument;
a second triaxial cable including a center conductor and a guard, the center conductor connected to a second output of the test and measurement instrument;
a third triaxial cable including a center conductor and a guard, the center conductor connected to the device under test;
a fourth triaxial cable including a center conductor connected to the device under test and a guard connected to the device under test;
a first guard switch to connect the guard of the first cable to the first output;
a second guard switch to connect the guard of the first cable to a first guard signal;
a third guard switch to connect the guard of the second cable to the second output; and
a fourth guard switch to connect the guard of the second cable to a second guard signal.