How to draw perfect sectors or circles using ie3d

hai,

I am doing M.Tech (Communicaion Systems) and now
I am simulating some rf mems antennas using ie3d. But I am not able to draw a sector with perfect curvature, i am getting sector with curvature made up of stright lines.., can any one tell me how we can draw a sector or a circle with good curvatures in ie3d... (perfect circles and sectors)

thanking you all,

M.S. Kishore Kumar

hey kishore ..how r u dear.. u finally placed ur problem here..good.... mail me r just post ur structure...