Posts Tagged ‘homemade’

Poland Dipole Panel Antenna

Tuesday, October 30th, 2007

18 or 19dBi – no mater for this one :) . Several dipoles printed on PCB board. Have more dipoles You get more dBis. Will it be 10 12 or 24 – You decide how much do You need.

This is defiantly homemade design. I have one small antenna whit only 4 dipoles – and it works great, so this antenna should work fine. Also will be easy to be rescaled for other bands – 2.4Ghz or 5Ghz only change dimension of the dipoles.

19dbi panel wifi antenna

19dbi panel wifi antenna link to picture

Here is the photo from the other side of the pcb board and other part of feeding element

15_2_2_foto.jpg

Picture is from this address : diy.wifi-live.pl/node/4 where also have blueprints for less dbi antenna .

On www.zero13wireless.net also has several files posted by sushisan .

Link to files 18dbipcbdipoleantenna.zip

5668MHz Helix Antenna

Saturday, October 27th, 2007

You can read about this antenna here www.g0mrf.freeserve.co.uk

helix antenna 5ghz

Freq : 5.6Ghz Gain : 10Dbi Beamwidth : 55 deg

All building instructions are on the site.

Cardboard Slotted Waveguide

Wednesday, October 24th, 2007

On http://wireless.com.pt/forum/index.php?PHPSESSID=3a383f0ff0f782f5a00fea2c1e20e5d9&topic=15658.0 You can find interesting antenna projct cardboard slotted waveguide.

Aluminium foil and cardboard is used to build slotted waveguide wifi antenna.

Here some pictures :

Last picture is 11Ghz and 2.4Ghz versions compared.

Waveguide is tested and the resuts are very good – more than 14dbi are reached!

This is a good way to fast build and test antennas, also quick modifications are possable.

The bad thing is that You can not solder aluminium – which for this antenna is not a problem.

The author of this post call this “40cents antenna” and he has several different types of antennas builded and tested.

You can find the links on the http://wireless.com.pt forums.