+ Post New Thread
Results 1 to 5 of 5
  1. #1
    Junior Member level 1
    Points: 450, Level: 4

    Join Date
    Mar 2018
    Posts
    16
    Helped
    0 / 0
    Points
    450
    Level
    4

    ADS model Doide s-param

    Hi
    I face with some problem in my project
    I want to use diode s2p but idont understand how can I use it
    It is the file
    https://www.macom.com/products/produ...-011029-14150T
    https://cdn.macom.com/s-parameters/MADP-011029_SPar.zip
    First there are some s2p with different condition for example 50ma 40V
    And I think that 50 ma is for diode Forward bias and 40V is for reverse forward bias
    Is it correct or not?
    If it is correct I get weird answer when I simulate it in ADS
    40V 50ma
    Click image for larger version. 

Name:	diode.jpg 
Views:	14 
Size:	187.2 KB 
ID:	157831


    It is my first question

    •   AltAdvertisement

        
       

  2. #2
    Advanced Member level 5
    Points: 15,137, Level: 29

    Join Date
    Apr 2014
    Posts
    2,353
    Helped
    947 / 947
    Points
    15,137
    Level
    29

    Re: ADS model Doide s-param

    I see the same thing with your data. Maybe they measured in SHUNT configuration?

    Edit: If you look at the datasheet, it shows the diode in shunt configuration to ground indeed. It is not in series in the signal path!


    1 members found this post helpful.

    •   AltAdvertisement

        
       

  3. #3
    Junior Member level 1
    Points: 450, Level: 4

    Join Date
    Mar 2018
    Posts
    16
    Helped
    0 / 0
    Points
    450
    Level
    4

    Re: ADS model Doide s-param

    thank you for ur response
    i dont understand i simulate in shunt and it seems incorrect
    Click image for larger version. 

Name:	diode2.jpg 
Views:	7 
Size:	100.2 KB 
ID:	157832
    Last edited by Dummyeng; 17th February 2020 at 18:48.



    •   AltAdvertisement

        
       

  4. #4
    Advanced Member level 5
    Points: 15,137, Level: 29

    Join Date
    Apr 2014
    Posts
    2,353
    Helped
    947 / 947
    Points
    15,137
    Level
    29

    Re: ADS model Doide s-param

    No you misunderstand things. Just look at the datasheet and you will understand why 40V is low insertion loss and 50mA is high insertion loss (=shorted to ground)

    Click image for larger version. 

Name:	pin.PNG 
Views:	2 
Size:	11.5 KB 
ID:	157842


    2 members found this post helpful.

  5. #5
    Full Member level 2
    Points: 1,029, Level: 7

    Join Date
    Jun 2018
    Location
    Turkey
    Posts
    145
    Helped
    15 / 15
    Points
    1,029
    Level
    7

    Re: ADS model Doide s-param

    what am I missing?



--[[ ]]--