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KK4OBI Bent Dipoles


This is the 4NEC2 antenna bend model for: OFC L-Dipole Ratios

To use this model:
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/


CM Standardized model for variable L-Dipole OCF ratio
CM #14 AWG. 1/2 wavelength feedpoint over ground at 28.4 mHz.
CM Off-Center Feed. Must use Auto-Segment.  Variable bend ratio.
CM Dick Reid, KK4OBI, 2016
CM
CE
SY hgh=5.2817    '150/28.4 = 5.2817m = halfwave off ground at 28.4 mHz
SY L=5.2324    'Length of resonant straight wire - meters
SY R=0.6    'Enter off-center bend ratio  (0.5 = center)
SY vert=L*R    'Ratio length of vertical - meters USE AUTO-SEG!
SY arm=L*(1-R)    'Ratio length of side arm - meters
GW    1    25    0    0    hgh+vert    0    0    hgh    #14    'Vertical
GW    2    25    0    0    hgh    arm    0    hgh    #14    'Side Arm
GE    -1
GN    2    0    0    0    14    6.e-3
EK
EX    0    1    25    0    1    0    0
EX    0    2    1    0    1    0    0
FR    0    0    0    0    28.4    0
EN

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