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Monopole issues

 
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Navarra87RF
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Joined: 20 Feb 2017
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Location: London
PostPosted: Tue Aug 01, 2017 9:42 am    Post subject: Monopole issues Reply with quote
Hello All,

I have an issue with an antenna that I am simulating, and I will really appreciate if you can help me out with it.

It is just a simple monopole (UHF) attached to a metal box (If L is the length of the monopole, the box is ~ 1.5Lx1.5Lx2L).
In principle, I have expected the typical doughnut shape a bit distorted. But, it looks like if the box is behaving as a reflector and I have the D-peak in the same direction than my monopole.
Any ideas why?...

Thanks! And thanks for your time!
Regards,
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