fractal antenna - sierpinski triangle simulation in hfss11

Hi,
I am trying to test sierpinski triangle in hfss11, after all the required steps, m getting error in 3D Model part validation which states that "Non manifold vertices found for part patch". I have tried using Heal option, but that isnt useful in my case.. still the same error appears..
Please help if anyone know anything regarding this issue..
Thanks.

I did not used hfss, but i suggest you to make finite size connections at the edges of triangles. Something like 0.005mm So when you zoom-in you will not see triangle edges but thin connections. When i was going to simulate some fractals, i prepared to do things this way.