Edge port load parallel capacitor

Shan25_22239
Shan25_22239 Altair Community Member
edited March 2023 in Community Q&A

In the attached CADFEKO model I have defined a edge port connecting a gap in a defected ground plane. For the port 3 I defined a load with a parallel capacitor. The computed S-parameter is shown below, where it can be observed that the values are larger than which is not correct. 

Can you please have a look at the model and let me know how to define a SMD capacitor at the gap in the ground plane.  

 

image

Further, the computation time is significantly longer. Can you suggest a different solver in FEKO which is better suited for this model?

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Answers

  • Jaehoon
    Jaehoon
    Altair Employee
    edited March 2023

    Hello,

    Can you please have a look at the model and let me know how to define a SMD capacitor at the gap in the ground plane.  

    -> I think the SMD capacitor should be connected using serial connection (instead of parallel.).

    (I don't know how to locate the cap parallelly between the gap.)

    image

    Further, the computation time is significantly longer. Can you suggest a different solver in FEKO which is better suited for this model?

    ->  Normally, FEM solver is better for the planar structure. In addition, I'd like to recommend you to use "Planar multilayer substrate" as below.

    image

    Jaehoon

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