Patent ID: 7504837

Claim:
An electrical characteristics measurement method, wherein a probe comprising a single signal terminal, at least one ground terminal, and a variable impedance element disposed in the vicinity of and in electrical communication with a terminal selected from said signal terminal and said ground terminal is used to measure the electrical characteristics of a measurement object, said method comprising the steps of: setting the impedance of said variable impedance element substantially to 0 Ohms (Ω), disconnecting the signal terminal and ground terminal of the probe at the distal end of said probe, forming a short circuit, and connecting a load to perform calibrations; making the impedance of said variable impedance element to be greater than a prescribed value, and placing said signal terminal and said ground terminal in contact with said measurement object to measure the electrical characteristics thereof; and spacing said variable impedance element and a distal end of said signal terminal or said ground terminal within approximately 1/10 the measuring wavelength when the electrical characteristics of said measurement object are measured.