FOR, having looked at that link, my device is VERY similar. I mounted the router high up near the ceiling to avoid WiFi radiation coming through my head as I sit at the PC (yes yes, tinfoil hat and all that stuff) and it's in the rear corner of the house. Because of this and because it's glued on the wall I made it slightly asymetrical to include rooms "to one side".
Here's the photo: the aluminum sheet is so reflective what you see here is a reflection of the ceiling tile. The router is screwed to a bracket fixed to the wall, and the cables drop down in a duct to where the WiMax power supply and connector is located. The WiMax cable goes through a hole in the wall and up to the small quad antenna on the roof, pointing at a mast about 15kms away. Stains on the wall ? Where I had a massive cooling duct glued with silicone !
I have been all round the house and get improved signal strength, one thing I did not do (and wish I had) is check the before and after signal strength 'behind' the reflector.
Incidently I can receive a good signal from the harbour yacht marina WiFi about 5 kms away on my smartphone, next thing will be to build a yagi looking that way.
OFSO
