• Public Gallery  • Help  
• Join Now!  • Log In  • Feature Tour
 holl_ands | Home > Loop Antennas incl Folded Dipole > 
UHF Folded & Tri-Folded Dipoles
UHF Folded and Tri-Folded [Bottom Fed] Dipoles analyzed using 4nec2.

UHF Folded Dipole size providing best SWR and Net Gain (470-698 MHz UHF Band):
9.25  x 1.0 inch - Quarter-Inch Copper Tubing (QICT)
9.375 x 1.0 inch - AWG10 Copper Wire
Date(s): 7 Sep 2011. Album by holl_ands. 1 - 27 of 27 Total. 13228 Visits.
Start SlideshowTo order prints and photo-products: 1. Select photos. 2. Click Order. 3. Select products.Select images and click to download to your computer 
Enlarge photo 1
enlarge 49KB, 1152x603
1
UHF Folded Dipole - QICT
3D View


Enlarge photo 2
enlarge 84KB, 1152x324
2
UHF Folded Dipole - QICT
Front View
[1 small box = 0.25 inches]


Enlarge Microsoft Word Document 3
enlarge 26KB, 791x1024
DOC3
UHF Folded Dipole - QICT
4nec2 File


Enlarge photo 4
enlarge 135KB, 1152x611
4
UHF Folded Dipole - QICT
UHF Raw Gain


Enlarge photo 5
enlarge 179KB, 1152x611
5
UHF Folded Dipole - QICT
UHF SWR (300-ohms) Under 2.5


Enlarge photo 6
enlarge 158KB, 1152x611
6
UHF Folded Dipole - QICT
UHF Impedance


Enlarge photo 7
enlarge 321KB, 1024x1024
7
UHF Folded Dipole - QICT
Azimuthal Pattern at 470 MHz


Enlarge photo 8
enlarge 320KB, 1024x1024
8
UHF Folded Dipole - QICT
Azimuthal Pattern at 590 MHz


Enlarge photo 9
enlarge 319KB, 1024x1024
9
UHF Folded Dipole - QICT
Azimuthal Pattern at 698 MHz


Enlarge photo 10
enlarge 50KB, 1152x605
10
UHF Folded Dipole - AWG10
3D View
AWG10, L=9.375, FW=1.0-in


Enlarge photo 11
enlarge 90KB, 1152x335
11
UHF Folded Dipole - AWG10
Front View
AWG10, L=9.375, FW=1.0-in
[1 small box = 0.25-in]
[1 big box = 1.25-in]


Enlarge Microsoft Word Document 12
enlarge 26KB, 791x1024
DOC12
UHF Folded Dipole - AWG10
4nec2 File


Enlarge photo 13
enlarge 136KB, 1152x611
13
UHF Folded Dipole - AWG10
L=9.375, FW=1.0-in
UHF Raw Gain


Enlarge photo 14
enlarge 178KB, 1152x611
14
UHF Folded Dipole - AWG10
L=9.375, FW=1.0-in
UHF SWR (300-ohms) under 3.1


Enlarge photo 15
enlarge 161KB, 1152x611
15
UHF Folded Dipole - AWG10
L=9.375, FW=1.0-in
UHF Impedance


Enlarge photo 16
enlarge 321KB, 1024x1024
16
UHF Folded Dipole - AWG10
L=9.375, FW=1.0-in
Azimuthal Pattern at 470 MHz


Enlarge photo 17
enlarge 322KB, 1024x1024
17
UHF Folded Dipole - AWG10
L=9.375, FW=1.0-in
Azimuthal Pattern at 590 MHz


Enlarge photo 18
enlarge 320KB, 1024x1024
18
UHF Folded Dipole - AWG10
L=9.375, FW=1.0-in
Azimuthal Pattern at 698 MHz


Enlarge photo 19
enlarge 57KB, 1152x525
19
UHF Tri-Folded Dipole - QICT
3D View - Bottom Fed

"Given that a barnyard number for the..."
View Comments...

Enlarge photo 20
enlarge 80KB, 1152x288
20
UHF Tri-Folded Dipole - QICT
Front View
[1 small box = 0.25 inches]


Enlarge Microsoft Word Document 21
enlarge 28KB, 791x1024
DOC21
UHF Tri-Folded Dipole - QICT
4nec2 File


Enlarge photo 22
enlarge 125KB, 1024x686
22
UHF Tri-Folded Dipole - QICT
UHF Raw Gain


Enlarge photo 23
enlarge 160KB, 1024x686
23
UHF Tri-Folded Dipole - QICT
UHF SWR (300-ohms) Under 4.0


Enlarge photo 24
enlarge 154KB, 1024x686
24
UHF Tri-Folded Dipole - QICT
UHF Impedance

Clearly it's 600-ohm Char. Impedance


Enlarge photo 25
enlarge 319KB, 1024x1024
25
UHF Tri-Folded Dipole - QICT
Azimuthal Pattern at 470 MHz


Enlarge photo 26
enlarge 317KB, 1024x1024
26
UHF Tri-Folded Dipole - QICT
Azimuthal Pattern at 590 MHz


Enlarge photo 27
enlarge 315KB, 1024x1024
27
UHF Tri-Folded Dipole - QICT
Azimuthal Pattern at 698 MHz


 Select All.  
  Sign the Guestbook. There are no entries.