INTERMODULATION DISTORTION MEASURING APPARATUS AND INTERMODULATION DISTORTION MEASURING METHOD

摘要

PPROBLEM TO BE SOLVED: To provide an intermodulation distortion measuring apparatus and an intermodulation distortion measuring method in which an IM power of a receiver can be highly accurately measured regardless of a frequency continuation time length. PSOLUTION: An antenna 3 outputs a received radio wave signal, and a filter 1 outputs the radio wave signal while blocking an evaluation band component therein. A receiving filter 4 passes out a receiving band component in a component out of the evaluation band of the output signal from the filter 1. An LNA 5 then amplifies and outputs the output signal of the receiving filter 4. A filter 2 passes out a generation band component within the evaluation band of an intermodulation distortion component contained in the output signal of the LNA 5. A spectrum analyzer 6 then measures a power of intermodulation distortion outputted from the filter 2. PCOPYRIGHT: (C)2004,JPO