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 holl_ands | Home > Omni & Quasi-Omni Directional Antennas > 
UHF Vertical Folded Dipole V-POL OMNI
UHF Vertical Folded Dipole analyzed using 4nec2.  It provides a TRUE OMNI-Directional
Azimuthal Pattern, but ONLY for Vertical and Circular/Elliptical Polarized signals.

Fol. analysis assumed fol. Dimensions:
L2=9.25          ' Folded Dipole Overall Element Length
FW=1.0           ' Distance between Folded Dipole Elements
GAP=0.5         ' Balun FeedPoint Gap Size
RACT=0.125    ' Radius (inches) for Driven Element is 1/4-in O.D. Copper Tubing

Dimensions AWG10 and it's degradation to SWR can be found in the analysis for
UHF Folded Dipole for Horizontal Polarized signals:
http://imageevent.com/holl_ands/loops/folded
Note that it's the SAME Antenna, except oriented Vertical or Horizontally.
Date(s): 29 Oct 2015. Album by holl_ands. 1 - 12 of 12 Total. 3121 Visits.
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UHF Vertical Folded Dipole OMNI
3D View


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UHF Vertical Folded Dipole OMNI
Side View
[1 large Square = 1.25 inches]


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DOC3
UHF Vertical Folded Dipole OMNI
4nec2 File Includes Summary of Dimensions


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UHF Vertical Folded Dipole OMNI
UHF Gain = 2.4 to 3.2 dBi towards 280-deg


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UHF Vertical Folded Dipole OMNI
UHF SWR (300-ohms) Under 2.6


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UHF Vertical Folded Dipole OMNI
UHF Impedance


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UHF Vertical Folded Dipole OMNI
Azimuthal Pattern at 470 MHz


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UHF Vertical Folded Dipole OMNI
Azimuthal Pattern at 530 MHz


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UHF Vertical Folded Dipole OMNI
Azimuthal Pattern at 590 MHz


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UHF Vertical Folded Dipole OMNI
Azimuthal Pattern at 650 MHz


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UHF Vertical Folded Dipole OMNI
Azimuthal Pattern at 698 MHz


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UHF Vertical Folded Dipole OMNI
Azimuthal Pattern at 806 MHz


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