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KK4OBI Bent Dipoles
This is the 4NEC2 antenna bend model for: Meander Dipoles
To use this model:
- Below. Highlight and copy (Ctrl C) the program control codes (CM,
CE, SY,etc).
- Open Windows Wordpad and copy (Ctrl V) the control codes into Wordpad.
- Go to "File, Save as..." and name your new antenna model.
- In Windows Explorer, right-click on your new model and "Rename" the file to end as ".nec".
- Open your new model to optimize the Length (L=) of the dipole
wire at the bend Angle (Ang=) of interest.
4NEC2 is an NEC2, NEC4, Windows based antenna modeler and optimizer by
Arie Voors.
It is available free of charge at: www.qsl.net/4nec2/
CCM Standardized square meander
dipole
CM #14AWG. Feedpoint height 1/2 wl over ground
CM Fixed at four meanders per side
CM Optimized for Length
CM Feedpoint in center at 50% Seg 1 or...
CM OCF at 50% of Seg 8 for low SWR
CM Dick Reid, KK4OBI, 2016
CM
CE
SY hgh=5.28 '150/28.4= 5.28 half-wave
SY M=4 'Meander(s)
per side
SY G=.05 'Gap at
feedpoint 2 inches 0r 0.05 meters
SY L=6.3949 'Length of straight dipole meters
SY S=L/(m*8) 'Equal Segment length
SY H=S
'Square meander. Height = Segment
GW 1 1
-G 0 hgh
G 0 hgh
#14 'Feed point gap +
GW 2 7
G 0 hgh
s*1 0 hgh
#14 'over
GW 3 7
s*1 0 hgh
s*1 0 hgh+H
#14 'up
GW 4 7
s*1 0 hgh+H
s*2 0 hgh+H
#14 'over
GW 5 7
s*2 0 hgh+H
s*2 0 hgh
#14 'down Meander 1+
GW 6 7
s*2 0 hgh
s*3 0 hgh
#14 'over
GW 7 7
s*3 0 hgh
s*3 0 hgh+H
#14 'up
GW 8 7
s*3 0 hgh+H
s*4 0 hgh+H
#14 'over
GW 9 7
s*4 0 hgh+H
s*4 0 hgh
#14 'down meander 2 +
GW 10 7
s*4 0 hgh
s*5 0 hgh
#14 'over
GW 11 7
s*5 0 hgh
s*5 0 hgh+H
#14 'up
GW 12 7
s*5 0 hgh+H
s*6 0 hgh+H
#14 'over
GW 13 7
s*6 0 hgh+H
s*6 0 hgh
#14 'down meader 3+
GW 14 7
s*6 0 hgh
s*7 0 hgh
#14 'over
GW 15 7
s*7 0 hgh
s*7 0 hgh+H
#14 'up
GW 16 7
s*7 0 hgh+H
s*8 0 hgh+H
#14 'over
GW 17 7
s*8 0 hgh+H
s*8 0 hgh
#14 'down meader 4 +
GW 18 7
-G 0 hgh
-s*1 0 hgh
#14 'over
GW 19 7
-s*1 0 hgh
-s*1 0 hgh+H
#14 'up
GW 20 7
-s*1 0 hgh+H
-s*2 0 hgh+H
#14 'over
GW 21 7
-s*2 0 hgh+H
-s*2 0 hgh
#14 'down Meander 1-
GW 22 7
-s*2 0 hgh
-s*3 0 hgh
#14 'over
GW 23 7
-s*3 0 hgh
-s*3 0 hgh+H
#14 'up
GW 24 7
-s*3 0 hgh+H
-s*4 0 hgh+H
#14 'over
GW 25 7
-s*4 0 hgh+H
-s*4 0 hgh
#14 'down Meander 2-
GW 26 7
-s*4 0 hgh
-s*5 0 hgh
#14 'over
GW 27 7
-s*5 0 hgh
-s*5 0 hgh+H
#14 'up
GW 28 7
-s*5 0 hgh+H
-s*6 0 hgh+H
#14 'over
GW 29 7
-s*6 0 hgh+H
-s*6 0 hgh
#14 'down meander 3-
GW 30 7
-s*6 0 hgh
-s*7 0 hgh
#14 'over
GW 31 7
-s*7 0 hgh
-s*7 0 hgh+H
#14 'up
GW 32 7
-s*7 0 hgh+H
-s*8 0 hgh+H
#14 'over
GW 33 7
-s*8 0 hgh+H
-s*8 0 hgh
#14 'down meader 4 -
GE 1
GN 2 0
0 0 4 0.003
EK
EX 0 1
50% 0 1
0 0
FR 0 0
0 0 28.4 0
EN
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