Measurement of 1 dB compression point and 3rd-order intercept point
Measurements of electronical components - Part 3 : measurements of active components
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Measurement of 1 dB compression point and 3rd-order intercept point
Measurements of electronical components - Part 3 : measurements of active components

Authors : Patrick POULICHET, Gilles AMENDOLA, Christophe DELABIE, Yves BLANCHARD

Publication date: June 10, 2009 | Lire en français

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3. Measurement of 1 dB compression point and 3rd-order intercept point

These parameters characterize the linearity of components and are essential in the design of communication systems.

3.1 Compression point at 1 dB

For a non-linear system, the output voltage V s (t ) of a system can be written in a general way, as a function of its input V e (t ) :

Vst=aVet+bVe2t+cVe3t+…
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