Deploying License-Free Wireless Wide-Area Networks

Isolating Antenna Systems

The scarcest and most valuable resource that is needed by individuals and groups who want to deploy license-free broadband wireless WANs is license-free spectrum—frequencies that can legally be used without spending hundreds of thousands of dollars to buy a license.

The quantity of available license-free frequencies is not increasing, but the number of people who want to use these frequencies is increasing. The result is that the same spectrum space will be used repeatedly. The knowledge and the ability to re-use frequencies and to avoid interference determines who is successful in the license-free wireless business and who is not. Any interested individual can put an outdoor wireless system on the air; however, providing ...