Re: NEC-LIST: Re: Plane wave excitation and far field patterns oflarge arrays

Remember that the RCS of a resonant piece of chaff is about 0.7 of a square
wavelength. Maybe you should use that as a rough check.

David Young
dwyoung_at_ieee.org

-----Original Message-----
From: nec-list-bounces+dwyoung=ieee.org_at_robomod.net
[mailto:nec-list-bounces+dwyoung=ieee.org_at_robomod.net] On Behalf Of David
Phillips
Sent: Thursday, September 29, 2005 7:09 AM
To: nec-list_at_robomod.net
Subject: Re: NEC-LIST: Re: Plane wave excitation and far field patterns
oflarge arrays

If I have an array of dipoles, undriven and unconnected to each other or
any other conductive material, sitting on an insulative sheet, and being
excited with a plane wave, are the dipoles considered to be
short-circuited? If so, do I still need to put the impedance on using
the LD card, or can I just use the conductivity of the dipole material
to model any losses?

Thanks
David

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