NEC-LIST: Fwd: Modelling Lattice Towers

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>Date: Tue, 10 Apr 2007 11:05:25 -0400
>To: GrantBingeman_at_cs.com
>From: John Belrose <john.belrose_at_crc.ca>
>Subject: Modelling Lattice Towers
>Cc:
>Bcc:
>X-Attachments: :Macintosh HD:635655:Manuscript_Ref_71(rev).pdf:
>:Macintosh HD:634110:Revised Copy of Paper 1450.pdf:
>
>
>Grant, I have seen your note on the NEC-List regarding modelling
>Trylon towers. Long time no hear from you (according my files
>February 2003).
>
>I have modelled lattice towers --- but never exactly --- the grid
>size I used was always larger than the actual grid size. I always
>fed the tower by a single source --- sides at the top and bottom of
>the tower were joined by a star set of short wires --- in-between
>sides were joined by a square-or-triangular set of short wires. The
>source was on a short wire connecting to the centre of the bottom
>star set of wires. This arrangement results in equal leg currents.
>
> But my models were complicated by placing shorted tuned stubs on
>all three sides of the lattice tower --- papers on the subject were
>presented at the ICAP 2003 and APS-URSI 2004 symposia. I copy these
>two papers, in chronological order --- I am not sure if the file
>size (sending both) will be too large for your system --- if it is I
>send the first one first..
>
>I cannot promise to have a look at your wire model very quickly ---
>snowed under with home and work related activities. But please send
>me your EZ file.
>
>73, Jack, VE2CV, VY9CRC
>
>
>
>--
>
>John S. (Jack) Belrose, PhD Cantab
>Life Senior Member of the IEEE
>TA ARRL, Fellow Radio Club of America
>Life Member AWA, Life Member QCWA
>Radioscientist Emeritus Researcher
>Communications Research Centre Canada
>PO Box 11490 Stn H
>OTTAWA ON K2H 8S2
>CANADA
>e-mail john.belrose_at_crc.ca

-- 
John S. (Jack) Belrose, PhD Cantab
Life Senior Member of the IEEE
TA ARRL, Fellow Radio Club of America
Life Member AWA, Life Member QCWA
Radioscientist Emeritus Researcher
Communications Research Centre Canada
PO Box 11490 Stn H
OTTAWA   ON   K2H 8S2
CANADA
e-mail  john.belrose_at_crc.ca
-- 
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