Antennas

    Antenna Types

  1. Common Antenna Problems
  2. Dipoles-Horizontal
  3. End-Fed-Random-Wire
  4. OCF-Dipoles
  5. HH-Antennas
  6. J-Pole-and-Slim-Jims
  7. Loops
  8. Verticals
  9. Collinear
  10. Discone Antenna
  11. Helicals
  12. Inverted-Vees
  13. NVIS
  14. Vee-Beam
  15. Yagi
  16. Linked-Dipole
  17. Beverage Antenna (Receive Only)
  18. Professional Antennas
  19. Antenna Modeling Page

Common Antenna Problems

http://www.k0bg.com/problems.html#swr

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End Fed Random Wire

Random-Wire-Antenna-Lengths (PDF) (local)

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Squid Poles

Introducing the squid pole - Phil Storr's home page

VK7JJ Squid Pole Writeup

Haveford HAM Amateur Radio Telescopic Squid Pole - 10 Metres
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https://www.ebay.com.au/itm/201669031879
http://www.perite.com/vk7jj/squidpoles.html

ebay RADIAL-VARIABLE-CERAMIC-TRIMMER-CAPACITORS
eBay item number:281902864023
http://www.philipstorr.id.au/radio/technical/Squid%20pole.pdf

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Dipoles-Horizontal

The Trapped Dipole

http://www.nsarc.ca/hf/dipole_design.pdf

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OCF Dipoles

OCF Dipole by Ron Bertrand



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W3DZZ MULTI-BAND ANTENNA 80-40-20-15-10M

https://rsars.files.wordpress.com/2013/01/w3dzz-antenna-iss-1-31.pdf

Antenna Traps for the W3DZZ 7.1 MHz 100 Watts

W3DZZ - a classic dipole heavily modified, now 5 bands & no tuner



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Inverted Vees

VK4WST Muti Inverted-V Antenna

Image

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Loops

VK2JI 40 meter Loop

https://vk2ji.com/equipment/antennas/40-metre-horizontal-loop-antenna/

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Yagi–Uda Antennas

A Yagi–Uda antenna, commonly known as a Yagi antenna, is a directional antenna consisting of multiple parallel elements in a line, usually half-wave dipoles made of metal rods. Yagi–Uda antennas consist of a single driven element connected to the transmitter or receiver with a transmission line, and additional "parasitic elements" which are not connected to the transmitter or receiver: a so-called reflector and one or more directors. It was invented in 1926 by Shintaro Uda of Tohoku Imperial University, Japan, and (with a lesser role played by his colleague) Hidetsugu Yagi.
Source:https://en.wikipedia.org/wiki/Yagi-Uda_antenna

Yagi Calculator by John Drew - DL6WU style yagis for VHF/UHF (updated 14 July 2015):
http://www.vk5dj.com/yagi.html



https://www.g0ksc.co.uk/

Folded Dipoles for VHF/UHF Yagis:
http://www.ifwtech.co.uk/g3sek/diy-yagi/dipoles.htm

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Beverage Antenna (Receive Only)

https://en.wikipedia.org/wiki/Beverage_antenna

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Professional Antennas

"https://www.rfiwireless.com.au/media/downloads/pdfs/IA404040-41-67_P-42475-1.pdf"

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Glenn Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl20190128 - pre published v0.9