All these antennas are “Inset-Fed Microstrip Patch Antennas“ type – and that is all from me π .
Some info may be found www.mwrf.com
Also if interested Youmay search google for “quarter wavelength patch”
There was different pics of this design – it looks like it is ofen used by manufacturers.
Thanks to the comment by Christian i sow for first time 14dbi version of this panel.
A lot of different versions 14 18 and 20.5 dbi pannels 2.4ghz whit different number of pathes.
So lets begin whit 14 dbi pannel.
Original name : unknown
Gain : 14gbi
url : http://www.carookee.com/forum/
Next one is 18dbi Wimo PA-13R-18. There is a lot of links to this antenna. 16 patch element are used.
This is first posted here www.vallstedt-networks.de
Drawing by elk form 2400mhz.net.ru PA-13R-18.rar
Third one is also new entry for me but it came out from here http://2400mhz.net.ru. This one is 20.5dbi gain.
Original name Delta DS 2400-21
posted by elk drawings DS 2400 – 21.rar
And finally one 5ghz antenna whit same type of patches used. Gain 23dbi and again 16 radiating elements are used. Found in http://www.lan23.ru/
Original name Panel 5Ρ -19
web page : http://www.bester-ltd.ru/
drawing by igor p. panel 5.1-5.3.tif