Edge port load parallel capacitor

Shan25_22239

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.  

 

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

HDGS_300mhz.cfs

HDGS_300mhz.cfx

Jaehoon

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.)

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.

Jaehoon