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radiation eff in HFSS

 
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malekabadi
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Joined: 08 Dec 2015
Posts: 4
PostPosted: Thu Jan 30, 2020 2:37 am    Post subject: radiation eff in HFSS Reply with quote
Hi Everyone,

I'm simulating a simple dipole antenna with PEC or copper material. I am then looking at the radiation efficiency and it is more than 100%. It is also more than 100% over the wide bandwidth and it is going up as frequency increases. I was wondering where this is coming from? I reduced the mesh sizes on the bounding box and it becomes closer to 100%. I bend the dipole arms (sort of forming a transmission line) and still getting more than 100% rad eff. why is that? two parallel arms can't radiate! right?
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