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August 27, 2018 at 4:00 pmbamdadslrSubscriber
Hi,
Â
I want to find the input impedance of a rod inside soil using HFSS. I think I should use Terminal solution type, and maybe lumped port excitation. Can someone please help me in this regard, if I am correct? and how should I define terminals?
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August 29, 2018 at 7:46 pmasamaiyarSubscriber
Hi bamdadslr,
Yes driven terminal should work (HFSS > Solution Type... > Terminal).
Create a monopole on a ground plane as shown below.
Create Lumped port on port sheet as shown below.
Now just cover the submerged part of rod with soil material as shown in figure below.
Plot smith chart to get input impedance.
Hope this helped.
Thanks,
Aman
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August 31, 2018 at 1:37 pmbamdadslrSubscriber
Hi asamaiyar,
Â
Thank you so much for your help and detailed explanation. It solved my problem with HFSS.Â
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September 1, 2018 at 9:37 pmbamdadslrSubscriber
Hi asamaiyar,
Â
I think the distance of the earth from our electrode and also the dimensions of the earth will affect the impedance of the rode, am I right?Â
So we have to find a limit for these two values in which the impedance value will converge to a specific value.
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September 5, 2018 at 8:22 pmasamaiyarSubscriber
Yes. That sounds correct.
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September 5, 2018 at 8:26 pmbamdadslrSubscriber
Thanks. Is there any way to solve the memory issue on HFSS? I increased the number of meshes to get a better accuracy, but run out of memory.
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September 7, 2018 at 2:53 amasamaiyarSubscriber
Hi bamdadslr,
This post might give some answers (link).
I would recommend you start a new post about this if you want recommendations from larger audience.Â
--AS
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September 7, 2018 at 1:41 pmbamdadslrSubscriber
Hi asamaiyar,
Â
Thank you so much for your response.
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- The topic ‘Impedance via HFSS’ is closed to new replies.
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