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How to use a spice model .lib file in Keysight ADS? Alternatives helpful too

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Hi everyone

I found a .lib file for a diode I want to use in my simulation, but I have no idea how to import it! Could anyone offer any suggestions? Or point me towards alternative approaches?

Here is the contents of the .lib file I found if it matters:

Code PHP - [expand]
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*   ZETEX  BBY40  Spice Model        Last revision 18/8/92
*
.MODEL BBY40 D IS=7.417E-15 N=1.058 RS=.1259 XTI=3 
+      EG=1.11 CJO=64.39E-12 M=1.013 VJ=2.566 FC=.5 BV=45.12 
+      IBV=.1232 TT=215E-9
*
*    + ISR=1.731E-12 NR=2.27 IKF 9.882 (LATER SPICE VERSIONS ONLY)
*
*NOTES: FOR RF OPERATION ADD PACKAGE INDUCTANCE OF 2.5E-9H AND SET
*  RS=0.47 FOR 2V, 0.39 FOR 5V, 0.32 FOR 10V OR 0.28 FOR 20V BIAS.
*
*                          (C)  1992 ZETEX PLC
*
*   The copyright in this model  and  the design embodied belong to
*   Zetex PLC ("Zetex"). It is supplied free of charge by Zetex for
*   the purpose  of research  and design  and may be used or copied
*   intact (including this notice) for that purpose only. All other
*   rights  are  reserved.  The model  is believed  accurate but no
*   condition or warranty as to its  merchantability or fitness for
*   purpose  is  given  and  no liability  in respect of any use is
*   accepted by Zetex PLC, its distributors or agents.
*
*
*   Zetex PLC, Fields New Road, Chadderton, Oldham  OL9 8NP

Code PHP - [expand]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24	* ZETEX BBY40 Spice Model Last revision 18/8/92 * .MODEL BBY40 D IS=7.417E-15 N=1.058 RS=.1259 XTI=3 + EG=1.11 CJO=64.39E-12 M=1.013 VJ=2.566 FC=.5 BV=45.12 + IBV=.1232 TT=215E-9 * * + ISR=1.731E-12 NR=2.27 IKF 9.882 (LATER SPICE VERSIONS ONLY) * NOTES: FOR RF OPERATION ADD PACKAGE INDUCTANCE OF 2.5E-9H AND SET RS=0.47 FOR 2V, 0.39 FOR 5V, 0.32 FOR 10V OR 0.28 FOR 20V BIAS. * * (C) 1992 ZETEX PLC * * The copyright in this model and the design embodied belong to * Zetex PLC ("Zetex"). It is supplied free of charge by Zetex for * the purpose of research and design and may be used or copied * intact (including this notice) for that purpose only. All other * rights are reserved. The model is believed accurate but no * condition or warranty as to its merchantability or fitness for * purpose is given and no liability in respect of any use is * accepted by Zetex PLC, its distributors or agents. * * * Zetex PLC, Fields New Road, Chadderton, Oldham OL9 8NP

Thank you,
Em

Enter the model parameters directly in a Nonlinear .MODEL block .You can also try "Importing Design" technique but it's a bit complicated.( it doens't make sense for a diode)

Thanks, I really appreciate your help BigBoss!

The diode I am trying to use is a variable capacitance diode/"varactor". I am a bit lost on the nonlinear model blocks on where to start. I have included a printscreen of all of my attempts. I thought that the DIODEM model would be most likely to work, however, I don't have the complete set of parameters and the simulation is not running....

In my second approach, I have found the spice .lib file for the diode I am trying to model, and I have used the diodeM please could you direct me on what to read to use this? No matter where I look online there are no resources on this!

Thank you,
Em

All you have to do is to place a diode and its model block as shown here.

Then fill the SPICE parameters which are available.( leave default values for the rest )

It's working perfectly now - thank you so much!

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