Circular polarized antenna

[gheit 2]

Hi everyone

as all of us know the advantages of electromagnetic simulation is to safe time and effort

this antenna is CP antenna with truncated edges

in HFSS software i cannot get the desired Axial ratio while in cst i get the desired axial ration for single frequency monitor while for broadband it is not achieved

how to plot the axial ration VS frequency in CST

how to know the accurate results winch could be agreed with the measurements, for example in cst axial ratio which one i should trust single frequency monitor or  broad band monitor

 

thanks all

cp.hfss

1.575G_CircularlyPolarizedPatch_BackFed_FR4.cst

cpp.stp

cpp.igs

hfsscp.iges

hfsscp.step

[gheit 2]

[gheit 2]

in this exaple of HFSS  the axial ratio as desired below 3db

[Admin 2546]

,,, welcome to this forum, buddy ...!!!!

,,,for...

"how to plot the axial ration VS frequency in CST...?"

see this...

 

[Admin 2546]

"I think with your project there are some problems....

[gheit 2]

1.575G_CPP_FR4.cst

[gheit 2]

cpp.igs

cpp.sat

cpp.sat

[gheit 2]

feeding position at 11

dimension in mm

[gheit 2]

[Admin 2546]

and what is the impedance of the antenna output?

and VSWR..?

[Admin 2546]

It's almost perfect !!!

[gheit 2]

can you upload the cst file 

 

[gheit 2]

please upload cst file of this model 

thanks

 

[Admin 2546]

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