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I need ADS nonlinear model for transistor MGF4937AM transistor

Question asked by btv_murthy@rediffmail.com on Apr 12, 2020
Latest reply on Apr 15, 2020 by btv_murthy@rediffmail.com

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Dear sir,

I need Mitsubishi MGF4937AM transistor nonlinear model for designing desired LNA ( MGF4937AM .Zap file) and require .Zap file of MGF 4937AM transistor.

I have searched in my Modelithics model Complete library that installed in my system and searched in the internet. I couldn't get .Zap file of above transistor.

I contacted Mitsubishi (Japan) sales persons for nonlinear model (.ZAP file) of above said transistor. Due to COVID-19, I couldn't reach them also.

Please some has .Zap file of MGF4937AM, please attach here. Please find the attachment of data file of MGF4937AM.

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mgf4937am_1907.pdf288.7 KB

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volker_muehlhaus Apr 15, 2020 6:03 AM

But why do you need a nonlinear model for an LNA? I think you can use the published S2P data. That should be perfectly fine for small signal use in LNA.

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btv_murthy@rediffmail.com @ volker_muehlhaus on Apr 15, 2020 10:07 AM

Dear sir,

Using nonlinear model, I can give different biasing for transistor and can set different temperature values and check. I will implement LNA on board, so I require nonlinear model. I should also check sensitivity and de rating of LNA.

I should generate layout for fabrication and then place component on the board.

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volker_muehlhaus @ btv_murthy@rediffmail.com on Apr 15, 2020 12:23 PM

I guess you need to use what is available, or make your own measurements if you need other bias conditions.

Asking for a ZAP file might confuse Mitsubishi, because *.zap that was the old packed project format from ADS 2009 and before. It is an old format no longer used, and has nothing to do with nonlinear models.

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btv_murthy@rediffmail.com @ volker_muehlhaus on Apr 15, 2020 6:26 PM

Dear sir,

"I guess you need to use what is available, or make your own measurements if you need other bias condition"

I have other nonlinear model of same company transistor such as MGF4301, MGF4916C, MGF4918D and I have s2p file of MGF4937AM.

I have designed LNA using s2p file of MGF4937AM transistor. I need to go for layout generation and fabrication of the same. If I have nonlinear model of MGF4937AM transistor, I can check Biasing of 2V and 10 mA and other biasing values also, later I can generate layout and send it to fabrication.

Now I don't know, what should I do, please guide me.

Please find attachment of available nonlinear model of MGF4937AM and s2p file of the same.

Attachments

GaAsHEMT_2V_10mA_Mitsubishi.s2p.zip1.1 KB
Other_nonlinear_models.jpg259.4 KB

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4 Replies

volker_muehlhaus Apr 15, 2020 6:03 AM
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But why do you need a nonlinear model for an LNA? I think you can use the published S2P data. That should be perfectly fine for small signal use in LNA.
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- btv_murthy@rediffmail.com @ volker_muehlhaus on Apr 15, 2020 10:07 AM
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  Dear sir,
  Using nonlinear model, I can give different biasing for transistor and can set different temperature values and check. I will implement LNA on board, so I require nonlinear model. I should also check sensitivity and de rating of LNA.
  I should generate layout for fabrication and then place component on the board.
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  - volker_muehlhaus @ btv_murthy@rediffmail.com on Apr 15, 2020 12:23 PM
    Mark Correct
    Correct Answer
    I guess you need to use what is available, or make your own measurements if you need other bias conditions.
    
    Asking for a ZAP file might confuse Mitsubishi, because *.zap that was the old packed project format from ADS 2009 and before. It is an old format no longer used, and has nothing to do with nonlinear models.
    1 person found this helpful
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    - btv_murthy@rediffmail.com @ volker_muehlhaus on Apr 15, 2020 6:26 PM
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      Correct Answer
      Dear sir,
                       "I guess you need to use what is available, or make your own measurements if you need other bias condition"
         I have other nonlinear model of same company transistor such as MGF4301, MGF4916C, MGF4918D and I have s2p file of MGF4937AM.
                                 I have designed LNA using s2p file of MGF4937AM transistor. I need to go for layout generation and fabrication of the same. If I have nonlinear model of MGF4937AM transistor, I can check Biasing of 2V and 10 mA and other biasing values also, later I can generate layout and send it to fabrication.
                             Now I don't know, what should I do, please guide me.
                            Please find attachment of available nonlinear model of MGF4937AM and s2p file of the same.
      Attachments
      GaAsHEMT_2V_10mA_Mitsubishi.s2p.zip1.1 KB
      Other_nonlinear_models.jpg259.4 KB
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I need ADS nonlinear model for transistor MGF4937AM transistor

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