minipci antennas in your laptop screen.Where should you place them? What tape should I use

Of all the laptops I've taken apart the antennas are on the top left and top right underneath the LCD. Being a curious junkie I'm looking for better coverage and found out that according to netstumbler I get better overall coverage placing 1 antenna on the top right and bottom left, diagonally from each other. So far my sample is far too small, just my house and neighborhood and my brother's house.

Some look like they lead tape attached to the metal supports of the lid to simulate an antenna dish. I'm thinking there might be a option to increase coverage. Any ideas would be great and I'll report back here. I'm also considering an Engenius 400mw minipci card. Has anyone tried this? I'm currently running an intel 2200bg but in for best coverage my old orinoco

 

On my laptop they are on top each side as you describe. When placed up high they are less likely to be blocked. When dual antennas are set near each other they generate a different field. Similar to a figure 8, with the signal being boosted ( increased dbi gain) front to back and weaker off the sides. With some firmware you can select A, B or diverisity.

While you are testing rotate you nb slowly 360deg to see if the signal increases. If you have noticed most of all the newer units (router/AP) have gone to a single antenna. This gives a omini pattern.