Method and device for measuring intermodulation distortion

Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Parameter related to the reproduction or fidelity of a...

Reexamination Certificate

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C324S612000

Reexamination Certificate

active

07123023

ABSTRACT:
A measuring device is provided for measuring intermodulation distortion of a measuring object. The measuring device includes a first signal generator which produces a first signal that is supplied to an input of a measuring object, a signal combining device having a first input which is connected to the output of the measuring object, and a signal analyzing device which is connected to the output of the signal combining device. According to the disclosure, a second signal generator which is synchronized with the first signal generator is provided, and second signal generator producing a second signal that is supplied to a second input of the signal combining device.

REFERENCES:
patent: 3711769 (1973-01-01), Peake
patent: 4774454 (1988-09-01), Yamaguchi et al.
patent: 6263289 (2001-07-01), Hassun et al.
patent: 6320461 (2001-11-01), Lee
patent: 6567762 (2003-05-01), Bourde et al.
patent: 499 346 (1992-08-01), None
“Ultra-Linear Power Amplifier Characterization Using Dynamic Range Extension Techniques”, Hassun et al., IEEE MTT-S Digest, 2001, pp. 1683-1686.
International Search Report in PCT/EP03/03286 dated Jul. 10, 2003.
International Preliminary Examination Report in PCT/EP03/03286 dated Jul. 16, 2004.

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