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GaAs MESFET SPICE Model - RF Cafe Forums

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layla

Post subject: GaAs MESFET SPICE Model Posted: Tue May 08, 2007 6:39 am

Captain

Joined: Thu Aug 10, 2006 7:09 pm

Posts: 7

I'm trying to simulate a circuit on ADS that works between 500MHz and 2500MHz. I decided to use a GaAs MESFET but I'm having some problems in finding an accurate model. Can anyone point me to where I can get accurate models (some examples of devices that I would like to find SPICE models for are CLY5, CLY10, or CLY15)? If these models are not available, how can I know the values to input in the MESFET model in ADS?

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Post subject: Posted: Tue May 08, 2007 6:48 am

Site Admin

Joined: Mon Jun 27, 2005 2:02 pm

Posts: 373

Location: Germany

Hi Layla,

There are ususally 2 sources for that:

1. To ask the manufacturer for the SPICE model.

2. The data is available in the ADS or other simulation tool you are using.

Sometimes the SPICE model is not available as a file but as a list of parameters which you have to manually enter into the simulation tool. I have done that several times in the past with GaAs FET transistors which I used for design an RF predistortion circuit.

If you need more information, please let me know.

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melkhouly

Post subject: Posted: Wed May 09, 2007 3:07 am

Captain

Joined: Thu May 03, 2007 2:55 am

Posts: 8

Location: Egypt

also in ADS a feature called netlist translator , u can convert the models of pspice , hspice , spectre to ADS model , it is very efficient

khouly

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Khouly

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