Patent ID: 7511508

Claim:
A connecting element characteristic measuring device that measures a connecting element characteristic of a connecting element that comprises a signal line used to connect a device under test and a measuring device used to measure a characteristic of the device under test with each other, the connecting element characteristic measuring device comprising: a first reflection coefficient measurer that measures a reflection coefficient of the signal line in an open state where the device under test is not connected to the signal line; a second reflection coefficient measurer that measures a reflection coefficient of the signal line in a short-circuit state where the signal line is short-circuited; and a connecting element characteristic deriver that derives the connecting element characteristic based on a measured result by the first reflection coefficient measurer, and a measured result by the second reflection coefficient measurer; wherein said connecting element characteristic deriver derives a square root of an absolute value of a product of the measured result by said first reflection coefficient measurer and the measured result by said second reflection coefficient measurer as the connecting element characteristic.