I live in a basement and do not get very strong WiMAX signals so I have placed my WiFi router outside my home. Now the distance between my laptop (Toshiba Satellite L645) and the WiFi router is larger than I would like it to be. I noticed that the download speed that I get is highly dependent on the orientation of my laptop. So here are the results of download speeds for various antenna orientations.

So I am assuming that there is some sort of surface antenna on this laptop that works well in certain directions but does not work that well in other directions.