Defected Ground Strutcure (DGS) with HFSS

[dragonhamada]

hfss ground

I have work on filter design (bandpass filter) and i am designing filter with defected ground structure and i was simulate my design with AWR(Applied Wave Research) or Microwave Office.

Now I turn to HFSS to learn and simulate with it

Can anyone help me on how to model the defect on the back metal ?


the defect is an etching area in a metal in any shape like C-shape or Hairpin

attached a photo to the defect
Thanks for everyone

 

[dragonhamada]

defected ground plane-ads

Hi everyone
No one can help it is urgent topic

 

[couless]

Hi,

First define your ground plane as perfect E, then draw the C shape structure (3 rectangulars), assigned these elements as perfect H ( slots in a metal). You can simulate after that. Let me know, if you have any problem.
Thanks

 

[dragonhamada]

Thanks
first i was want to know how to made the defect in the ground(how to etch the C-shape)
and i was modeled

Now
you say to make the ground plane perfect E and the defect as perfect H
why you say that?

i simulate without assinging any of these but the result was not satisfactory
hope you to reply to my question?

Thanks again

Eng.M.Hasanien

 

[pabloec]

why dont you simulate using the perfect E perfect H suggestion?

 

[dragonhamada]

i cannot understand if i assign the three rectangular as perfect-H before or after i subtract them from the ground?

and if i assign them as perfect-H i can subtract the rectangular or not?
i will try this

Thanks,

Eng.M.Hasanien

 

[dragonhamada]

hi

I need a book in Dielectric Resonator Antenna(DRA)


Eng.M.Hasanien

 

[dragonhamada]

hey no one have such abook
i need it urgently

 

[lakshmi_dwi]

hi there.. how could you design defected ground w/ AWR..
do you have any tutorial for design defected ground w/AWR???