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-listReceived 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