Where is the antenna located in the Z10?

When I type using both thumbs, I tend to stick out both pointer fingers along the sides of the device for stability...so my fingertips rest on the sides of the top 2 corners. I have noticed that my browser does not respond until I remove my finger off of the top right corner. If I'm using Google search for example, the browser sits motionless until I raise my finger. Then it goes. My signal strength icon never fluctuates during this dance I do to make this work. Any thoughts?

Posted via CB10

I thought the antennae is at the bottom. I could be wrong.
Never had this issue.

You might find that info in one of the dissection videos. But there's more than one antenna. Phone/data, gps, bluetooth, wifi, nfc (rear of battery cover).