NEC-LIST: NEC-2 bowtie for reception

From: Eric Ball <ultimotion_at_email.domain.hidden>
Date: Wed, 06 Aug 2008 20:22:44 -0400

I am trying to determine the best way to model the feedpoint of a bowtie for
reception. L.B.Cebik recommends using a sort 3 segment wire between the two
halves of the bowtie, with the source in the middle segment. So instead of
a source I've stuck in a resistance to model the feedline/receiver
impedance, but I've left the rest of the wire as ideal. Is there a more
correct way to do this?

CM bowtie >-<
GW 4 16 0 0.1188 0.1061 0 0.0127 0 0.003175
GW 5 16 0 0.0127 0 0 0.1188 -0.1061 0.003175
GW 12 16 0 -0.1188 -0.1061 0 -0.0127 0 0.003175
GW 13 16 0 -0.0127 0 0 -0.1188 0.1061 0.003175
GW 100 3 0 -0.0127 0 0 0.0127 0 0.003175
LD 5 4 0 0 58000000
LD 5 5 0 0 58000000
LD 5 12 0 0 58000000
LD 5 13 0 0 58000000
LD 4 100 2 2 300 0
EK
GN -1
FR 0 55 0 0 470 6
EX 1 1 1 0 90 0 90 0 0
PQ -1
PT 1 100 2 2
XQ
EN

The elements are made of 1/4" copper connected by a 300ohm balun. The
dimensions are not optimized in any way.

-- 
The NEC-List mailing list
NEC-List_at_robomod.net
http://www.robomod.net/mailman/listinfo/nec-list
Received on Thu Aug 07 2008 - 00:22:40 EDT

This archive was generated by hypermail 2.2.0 : Sat Oct 02 2010 - 00:10:46 EDT