I reconstructed the destroyed antenna out of aluminum foil and double-sided tape. I have no idea if it's actually working, but I like to think so. ;-) Details on my blog: https://blog.kamens.us/2017/05/10/lesson...-learned-from-diy-microsoft-surface-pro-4-screen-replacement/
I'm not sure what it's called, but the yellow stripes are antennae, and they're really easy to destroy if you are spudging off a screen that's shattered along the top edge. The replacement part is impossible to get if you do this. I wrote about my "creative" solution to this problem on my blog: https://blog.kamens.us/2017/05/10/lesson...