DARPA radio transmitter to revolutionize battlefield communications: Military engineers are looking to revolutionize battlefield communications by introducing a new project that seeks to bridge gaps in current military communications capabilities.
The program, by the Defense Advanced Research Projects Agency (DARPA), is called A Mechanically Based Antenna, or AMEBA for short. It is headed by Troy Olsson, DARPA’s program manager in the Microsystems Technology Office.
Olsson’s program seeks to leverage the benefits of ultra low frequency (ULF) and very low frequency (VLF), which operate in the electromagnetic spectrum band between hundreds of hertz and three kilohertz (KHz), and three to 30 KHz, respectively.
The benefit of the ULF and VLF bands is their ability to penetrate water, soil, rock, metal and building materials, and their potential for long distance communication — as the atmosphere acts as a waveguide to propagate ULF and VLF due to their extremely long wavelengths, according to Olsson.
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