PHASE NOISE MEASUREMENT METHOD AND PHASE NOISE- MEASURING APPARATUS USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a phase noise measurement method whose measurement accuracy is improved and to provide a phase noise-measuring apparatus using the method.;SOLUTION: In the phase noise-measuring apparatus that has a PLL circuit and an analysis section for measuring the phase noise of a device to be tested by a PLL detection method, the noise difference of the phase noise by a voltage- controlled oscillator in the PLL circuit is stored at the analysis section in advance to correct a phase noise measurement value.;COPYRIGHT: (C)2004,JPO