questions regarding designing of patch antenna using IE3d

i have design a patch antenna and after simulation its give resonant frequency of 6.51 with -30.12 return loss and the max E-current is 20A/m. can anybody tell me that is it a gud patch and if its not good then what and how can i improve it to make it perfect antenna
thank you

I'm not using IE3D, but i probably could help you in HFSS..
but from your explanation, the Return Loss -30 db seems good.
But, it probably depend on your antenna specification.
will, you tell to us about the specification, so we can evaluate your antenna....
Best regards

evyta