Home-Brew Antennae: Difference between revisions

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[[Image:Cantenna.jpg|thumb]]
[[Image:Cantenna.jpg|thumb]]
[[Image:Cantenna2.jpg|thumb]]
[[Image:Cantenna2.jpg|thumb]]


[[Image:Circular waveguide optimise.xls|Spreadsheet for optimising cantenna]]
 
This [[Image:Circular waveguide optimise.xls|Spreadsheet]] can be used to optimise the variables when building a cantenna.


===Sectoral Antenna===
===Sectoral Antenna===

Revision as of 12:29, 16 November 2005

Omnidirectional Antennae

It is possible to make a homebrew omnidirectional antenna, as shown in the guides listed on Links#Antennae.

Directional Antennae

Cantenna

The instructions shown the websites listed on Links#Antennae were used ti build some cantennae as shown in the pictures:


This File:Circular waveguide optimise.xls can be used to optimise the variables when building a cantenna.

Sectoral Antenna

Turn an Omni into a Sector

The reflector designs shown, found at Freeantennas.com can be applied to a standard omni and will turn the omni into a sectoral antenna.

Simulation

NEC 2 was used to generate the simulated field pattern for a cantenna with the dimensions used in our first test cantenna.