How to get Dispersion Diagram for UC-PBG in HFSS

[dokesv]

Hi all,

I have designed rectangular microstip patch antenna operating at 2.4 GHz with FR4 as dielectric and metal ground plane. I want to study effect of EBG structure on the performance of this antenna.

I want to study simple UC-PBG structure in HFSS. How to design EBG structure for 2.4 GHz? (formulas)

Whether to use eigen mode solver or driven model or driven terminal solution type in HFSS.

I want to prove following properties of EBG
(1) When the incident wave is a surface wave (k²x + k²y ≤ k²0 , kz is purely imaginary), the EBG structures show a frequency band gap through which the surface wave cannot propagate for any incident angles and polarization states.

(2) When the incident wave is a plane wave (k² x + k²y ≤ k20 , kz has a real value), the reflection phase of the EBG structures varies with frequency, At a certain frequency the reflection phase is zero degrees, which resembles a perfect magnetic conductor that does not exist in nature.

Please help me....

Thank you

 

[ckshivaram]

found some similar thread... but dont know if it is helpful to you

https://www.edaboard.com/threads/102363/

 

[dokesv]

Patch antanna with EBG

Hi all,

I have designed rectangular microstip patch antenna operating at 2.4 GHz with FR4 as dielectric and metal ground plane. I want to study effect of EBG structure on the performance of this antenna.

Even after adding EBG structure around, I m not getting enough improvement in Bandwidth (f1-f2) (f1 & f2 are the frequencies where S11 in dB fall bellow -10 dB).. but after fabrication and testing i got lot of improvement.... So i m getting why it is not reflected in simulation software HFSS v.-11

please help me

---------- Post added at 13:56 ---------- Previous post was at 13:55 ----------

thanks for link