Re: NEC-LIST:Imperfect Ground

Hi Yee Hui

I found some values for ground conductivity and relative permittivity. I do
not have a reference for it though.
There are different values for different types of ground.

Pastoral, low hills, rich soil: Conductivity = 0.0303 to 0.01 S/m and
Relative Permittivity = 14-20
Flat country, marshy, densely wooded: Conductivity = 0.0075 S/m and Relative
Permittivity = 12
Pastoral, medium hill and forestation: Conductivity = 0.006 S/m and Relative
Permittivity = 13
Pastoral, medium hills and forestation, heavy clay soils: Conductivity =
0.005 S/m and Relative Permittivity = 13
Rock soil, steep hills, typically mountainous: Conductivity = 0.002 S/m and
Relative Permittivity = 12-14
Sandy, dry, flat, coastal cities, industrial areas: Conductivity = 0.001 S/m
and Relative Permittivity = 5
Cities, heavy industrial areas, high buildings: Conductivity = 0.001 S/m and
Relative Permittivity = 3

Hope this helps

Renier Dreyer
Development Engineer
Poynting Software

----- Original Message -----
From: "Lee Yee Hui (Dr)" <EYHLee_at_ntu.edu.sg>
To: <nec-list_at_gweep.ca>
Sent: Wednesday, November 27, 2002 11:32 AM
Subject: NEC-LIST:Imperfect Ground

> Hi everybody,
>
> Good day! Could I find out if anybody has an idea of a
> typical ground conductivity and typical ground dielectric constant
> value that I can use to model imperfect ground conditions?
>
> Thank you in advance and have a wonderful day!
>
> Best regards,
> Yee Hui
> --
> The NEC-List mailing list <nec-list_at_gweep.ca>
> http://www.gweep.ca/mailman/listinfo.cgi/nec-list

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