Wednesday, 25 February 2009

Twisted radio beams could untangle the airwaves

We're not only exhausting tangible resources such as oil. 

The radio spectrum is becoming increasingly crowded, with virgin "veins" of frequency running short. 

The Swedish Institute of Space Physics have found that twisting radio beams into a helical shape as they are transmitted could help ease the congestion.

Radio frequency encompasses electromagnetic waves between 3 kilohertz and 300 gigahertz, and as wireless communications technology advances much of that range is being used. Satellite TV, wireless computer networks and cellphones are among the growing technologies vying for space up to 30 gigahertz, with some technology even beginning to extend beyond 100 gigahertz leaving a dwindling supply of virgin terrain to exploit.

See below for the full article:


No comments:

Post a Comment