File:3rd order intermod animation (thumbnail).png

3rd_order_intermod_animation_(thumbnail).png (300 × 188 pixels, file size: 259 KB, MIME type: image/png, looped, 29 frames, 5.8 s)

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Summary

Description
English: Thumbnail for File:Two carrier 3rd order intermod measurement.png

The non-linear amplifier produces undesirable intermodulation products (D3, D4) at 2*f1-f2 (D3) and 2*f2-f1 (D4). Note that the 3rd order intermods grow by 3 dB for every 1 dB increase in input power, while the carriers increase by 1 dB for every 1 dB increase in input power. The spectrum becomes highly distorted at higher power levels as the odd order intermod products (3rd, 5th, 7th, 9th, ...) increase in level with respect to the carriers. An nth order intermod grows by n dB for every 1 dB increase in input power.

I captured these screenshots from a Rohde & Schwarz FSW spectrum analyzer (non-free software) and created the animation myself. Usage of these screenshots constitutes fair use.
Date
Source Own work
Author Ice Ardor

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Captions

A nonlinear system produces unwanted intermodulation products (D3, D4) with a 2 tone stimulus (M1, M2)

Items portrayed in this file

depicts

inception

29 January 2019

media type

image/png

checksum

798300bbe2ee60c0d48ca27eef51113ba995bd52

determination method or standard: SHA-1

data size

265,063 byte

duration

5.8 second

height

188 pixel

width

300 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current02:28, 30 January 2019Thumbnail for version as of 02:28, 30 January 2019300 × 188 (259 KB)Ice ArdorUser created page with UploadWizard

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