estqwerty’s wifi antennas

http://www.essexrepeatergroup.org.uk/gb3cms.htm

Horizontally Polarised Omnidirectional Slotted Waveguide
10-slot winged K5SXK/WA5VJB based design

Also interesting radome is build.

Here are the pictures.

Now using wings we getting bigger ground plane - ro this is writen in big books - i must try this some time.

I lake the radome too it is simple to make.

And as final we get quite strange shape for this antenna , I like this too.

HLSSA software for design slotted waveguides site is down.

I mention this software many times, but it seems that site from which I downloaded it is down, so I’ll put back online. IF anyone is unhappy whit this - contact me and I’ll stop spreading it!

HLSSA software for design slotted waveguides is here : hlssa61e_programonly.zip

This is english version and last according to version that I can find- ver6.1

Here You can find German ver 5.4 www.dl6nci.de

Authors are DK3BA and DH6SBN.

Here is my 5ghz slotted waveguide antenna almost build and calculated with HLSSA.

Some photos of my 5ghz slotted waveguide antenna project - never finished and tested due lack of proper hardware to test.

Made from aluminum tube and calculated whit hlssa program.

This is ten slots dual side design.

As I maybe mentioned in my previous post hlssa program gives some very strange results about thickness dimensions of the waveguides. The program says that is passable to build slotted waveguide whit an only 100mm to 25mm tube or waveguide for 2.4ghz band.

Till now I was unable to find anything that confirm this, but now I sow several interesting pictures :

Pictures are from here : www.starhill.org

Look at this - there is NO WAY that this is be 100×50 mm this looks like more like 20 or 25mm !!!

So this will make passable to use other, more easy to be found on the market tubes.

More pictures :

And finally one more thing - 20 to 22dbi omni directional slotted waveguide 25mm thin PDF file whit specification