Posts Tagged ‘waveguide’

HLSSA software for design slotted waveguides

Tuesday, November 20th, 2007

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.

HLSSA software for design slotted waveguides

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

Thin Slotted Waveguide for 2.4Ghz

Saturday, November 3rd, 2007

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 with 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 :

thin slotted waveguideThin Slotted Waveguide for 2.4Ghz

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 :

slotted waveguideslotted waveguideslotted waveguideslotted waveguide

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

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.