Abstract
This paper describes how to calibrate the right angle phase of a Four-Terminal-Pair (4TP) LCR meter. The meter uses the right angle signal to process synchronous detector as a vector receiver. The right angle calibration method uses, at least, one programmable phase signal generator and a phase shift circuits. The signal generator and the phase shifter do not require a precision 90 degree angle. As a result, the right angle phase deviation of the LCR meter is better than 100 murad at 10 MHz. This method is also applicable to the phase calibration of a vector network analyzer.
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