We needed a little more signal strength on our wi-fi between the CNC computer in the shop and the design computer in the house.
I saw a similar reflector made for the vertical antenna on a Linksys WAP and figured it should work on a USB device.
Piece of 3/4" plywood, at least 2" by 6"
Piece of aluminium window screen, 7.5" by 6". Plastic won't work.
Figure 1 - Paper stuck to plywood:
Figure 2 - Cutting the slot for the cable:
Figure 3 - Done:
(Pardon the blueness from our tarp)
Screen stapled to back side, stick behind screen stabilizes screen and is the support.
Our USB cable had a round section at the cable end of the connector which made mounting easy.
You might need to woogle the hole a bit if yours is flat or rectangular.
Figure 4 - In Use:
This reflector gives about 3 dB of gain and better directionality over the omni antenna.
It was just what we nedded to get good signal strength and connectivity.