Cone Concentrate
Posted in Restaurant & Catering Equipment on 08/26/2008 08:27 am by adminCone Concentrate
How precisely could a cellular/bluetooth signal be focused? Ideally I would like laser-like concentration?
I am working on a school (undergrad science level) project.
I would like to be able to send a signal in a very tightly controlled area. Ideally I would like to be able to concentrate the signal very precisely at my target, with no reception outside the transmission cone. I wonder how tightly can the signal drop be controlled.
I would like to use a frequency similar to Bluetooth or in that range.... I wonder if anyone can point me in the right direction for some information about the antenna design and --most importantly-- to the formula that would help me determine how fast the signall drops off outside the transmission cone.
My application requries relatively short (20-30 ft MAX) transmission distance.
Can someone suggest a book or article (physical or on the web) that gives the formula for the drop off of the signal outside the cone? Thanks
you could use a "yagi antenae" which sends the signal off in preferential lobes, though still not exclusivly in one direction.
At the distance you are talking about, you might actually try sending the signal via laser or colimated light beam.
Blue tooth signals are probably of too long a wavelength to columate that tightly over sucha small range.
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