Narrow/Screen bluetooth

Using Arduino Sensors
1

Hi! I'm thinking to read bluetooth signal, but I need to sent and focus it as a beam, directionally. Is it conceptually possible to:

  1. Focus bluetooth signal into a beam or

  2. Screen transmitter in a way, than only little hole is left. Will that signal from the little hole fly only in one direction - forward, and will that lessen signal strength a lot on the receiver somewhere in the front?

2

RyuMaster:
Hi! I'm thinking to read bluetooth signal, but I need to sent and focus it as a beam, directionally. Is it conceptually possible to:

  1. Focus bluetooth signal into a beam or

  2. Screen transmitter in a way, than only little hole is left. Will that signal from the little hole fly only in one direction - forward, and will that lessen signal strength a lot on the receiver somewhere in the front?

Oh, I think I've found my answer finally. Direction antenna will do the trick.
http://www.pentest.co.uk/documents/bt_dongle_mod/bt_dongle_mod.html
just need to modify the dongle...