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aschwarzinger
Joined: 29 Sep 2004
Posts: 1
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 29 Sep 2004 14:53 am-pm conversion characterization |
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I need a solid explanation of what AM/AM and AM/PM distortion is in RF power amplifiers.
I certainly understand that RF signals that do NOT have a constant envelope will generate in band distortion. What I do not understand is
how you get from the distortion term to a quantifyable expression
of AM/AM distortion. How is this even quantified.
How is AM/PM quantified .... in degrees I assume, but how is the result
computed ???????
If anyone can point me to a paper that explains this, I would be most
oblidged.
Please email me at aschwarzinger(at)d2d.com.
Andy
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marcomdd
Joined: 11 Jan 2003
Posts: 159
Helped: 3
Location: Rome
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29 Sep 2004 15:11 am/am am/pm distortion |
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| aschwarzinger wrote: |
How is AM/PM quantified .... in degrees I assume, but how is the result
computed ???????
Andy |
yes, degrees.
computed ? Measured !
Here you are :
A Fast AM/AM and AM/PM Characterization Technique, GAAS 2003, Munich
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29 Sep 2004 15:11 Ads |
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Puppet1
Joined: 07 May 2004
Posts: 881
Helped: 2
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29 Sep 2004 15:14 Re: AM/AM and AM/PM conversion |
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Try this paper:
A comprehensive analysis of IMD behavior in RF CMOS power amplifiers
Fager, C.; Pedro, J.C.; de Carvalho, N.B.; Zirath, H.; Fortes, F.; Rosario, M.J.;
Solid-State Circuits, IEEE Journal of , Volume: 39 , Issue: 1 , Jan. 2004
Pages:24 - 34
Books:
Distortion in Power Amplifiers Artech House 2003
Intermodulation Distortion in Microwave Circuits Artech House 2003
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