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Plotting OIP3 vs IIP3 using Hspice+AvanWaves (Read 3995 times)

Syahrizal

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Plotting OIP3 vs IIP3 using Hspice+AvanWaves
Jul 24^th, 2005, 10:37pm

Dear all,

Does anyone here uses HSPICE? I have spent a lot of time looking into plotting OIP3 vs IIP3 to find 1db-compression point and third order intercept point using the normal HSPICE. There are no manual available for such plot, but I believe there must be a way to do it. Just wondering if anyone has come across it and successfully solve it. Thanks a lot

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spiceoracle Junior Member Offline Posts: 21 USA	Re: Plotting OIP3 vs IIP3 using Hspice+AvanWaves Reply #1 - Aug 10^th, 2005, 12:48pm Plotting OIP3 and IIP3 using HSPICE is not possible. HSPICE will not show non-linear effects such as compression points or intercept points. If you want to simulate non-linear effects, you will need to use HSPICE RF. You can then measure OIP3 and IIP3 using CosmosScope.
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Geoffrey_Coram Senior Fellow Offline Posts: 1999 Massachusetts, USA	Re: Plotting OIP3 vs IIP3 using Hspice+AvanWaves Reply #2 - Aug 18^th, 2005, 10:38am Spiceoracle - Couldn't you do this by running a bunch of transient analyses and computing FFTs? I agree that an RF simulator would be better, though.
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spiceoracle Junior Member Offline Posts: 21 USA	Re: Plotting OIP3 vs IIP3 using Hspice+AvanWaves Reply #3 - Sep 8^th, 2005, 11:14am In theory, running a bunch of transient analyses and computing FFTs should work. I've never tried this and I really don't know of anyone who has successfully used this method.
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