2007-01-17 12:44:27 · 3 answers · asked by jmetsdad 1 in Science & Mathematics ➔ Engineering
its just a burst of energy. like most does this. lasers can be more focused. but its energy source is still wild.
2007-01-17 12:48:18 · answer #1 · answered by Wattsup! 3 · 0⤊ 0⤋
RF radiation behaves very similar to light waves. It is essentially the same form of energy, but at a much longer wavelength than the visible light that we see.
Most light sources produce incoherent light, which spreads out from its source. RF radiation similarly spreads out from its source. There are means for focusing both (i.e. lens for light, and directional antennas for RF radiation). However both reflect off of surfaces of objects and scatter.
If RF radiation could be produced in a very coherent pattern, like a LASER, it could be directed in a single column that didn't spread. This is very hard to do, except at extremely high frequencies (think MASERS). In addition, the beam would eventually be scattered by various particles as it travelled.
2007-01-17 21:04:31 · answer #2 · answered by radon360 4 · 0⤊ 0⤋
It is same as a beam of light, either focused (by an antenna) or from a point source.
2007-01-17 20:50:00 · answer #3 · answered by jimmymae2000 7 · 0⤊ 0⤋