Wireless LAN Emissions Attenuation Technologies

As stated, solicitation N04-076 is requesting a system that violates basic physics. A propagating RF wave attenuates at a rate defined by Maxwell's Equations and without a physical barrier, no additional attenuation can be obtained. Our solution approaches the final goal - how to implement reliable and flexible RF communication throughout a ship without violating EMCON requirements. We do this with a synergistic combination of two technologies, both of which we have been working on for many years. These two innovations are Time Modulated Ultra-wideband (TM-UWB) radio and ad hoc mobile networks. The TM-UWB chip set and operational TM-UWB radios using this chip set are available off the shelf and the software is fully TCP-IPV4 compatible. The ad hoc mobile network technology is also available now, and has already been ported to a commercially available hand held PDA. Together this means that the total system can be tested on a ship during Phase 1. Such a test would demonstrate that robust ship wide communication can be achieved, yet the signals outside the ship meet EMCON requirements. The proposal is very explicit in proving that the required 64 dBs attenuation will be achieved.