Patent ID: 9535150
Date: 2017-01-03
CPC Classifications: G01R,H04B

Claim:
1. A method comprising: providing a first signal, from a transmitter of a measuring device, to a first calibration element connected to a port of the measuring device via one or more cables; receiving, by a receiver of the measuring device, a first return signal reflected by the first calibration element, and measuring the first return signal; providing a second signal, from the transmitter to the receiver, through a reference path of the measuring device, and measuring a reference signal through the reference path; and wherein the measurement of the reference signal is performed via a signal splitter arranged between a switch and the port of the measuring device, wherein the signal splitter comprises a resistive splitter of a star configuration, and wherein a first resistor is connected to the transmitter through the switch, a second resistor is connected to the receiver through the switch and a third resistor is connected to a one of the cables through the port.