Browse over 10,000 Electronics Projects using the Page Numbering provided at the bottom of each Page.

Easy Homemade 2.4 Ghz Omni Antenna

Easy Homemade 2.4 Ghz Omni Antenna

An easy step-by-step guide go making a homemade wireless antenna, for a fraction of the cost of commercial antenna.
Most of the designs either had toroid magnets or a decoupler on the fly-lead of the antenna. However the location of the decoupler seems different in each design, and some designs quoted a decoupler length of 1/4 wavelength, others were !/4 wavelength times the velocity factor of the decoupler tube (brass tube quoted at 0.95). I’ve tried most locations and can report that without proper testing kit I can see no difference in the Signal to Noise ratio between having a decoupler and not. I decided to not bother as it simplified the design. If anyone knows a good reason why you must have a decoupler then I would love to know (especially if you know where it should be exactly). If you want to add a decoupler, please do, I found using 15mm or 22mm copper tube and a 15mm or 22mm end stop made a good design, just needing to be soldered together to get the right length, and a hole drilled in the end of the end stop to fit the cable.


Article by

Visit Here for more.