fractal antenna designing

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er.satish

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hiii...
i have designed a fractal antenna at 2.45 GHz using IE3D.
but i m not able to find good results.
(e.g s -parameter graph doesnt show good results.
also, efficiency of the antenna is too low : 3 db)

pleaze help me find what's wrong with my design.?
i guess i m not able to find a proper location for port excitation.

please help.....urgent......

thank you all..
 

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Hello,

I don't think I can help you with the design of this antenna (as it will be time consuming I guess). Is the connection between the corners of the reactangles and the circles just one point? If so, I should not do this as this results in infinite current density. See below:



From the graph I can't see how did the feed.
 

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