Defense Advanced Research Projects AgencyTagged Content List

Size, Weight and Power Constraints

Making technologies smaller, lighter and more power-efficient to increase military effectiveness

Showing 7 results for SWAP + Photonics RSS
In counterinsurgent, counter-terror campaigns, risks associated with conventional weapons in combat operations can severely limit their use and effectiveness, particularly in urban environments. These risks are largely associated with challenges posed by confining intended effects to adversary combatants and forces.
Conventional military radio frequency (RF) antenna systems typically employ coaxial cable as the signal conduit between the aperture and the transmit/receive electronics. For long cable lengths, high RF frequencies and wide bandwidths, the cable itself is a key limiter of signal fidelity and link efficiency. Coaxial cable bundles are also large and heavy, a critical drawback for mobile platforms. Photonic technologies, however, may provide low loss, reduced size and weight, immunity to electromagnetic interference, broad bandwidth and overall ability to remote antennas over distances not possible with conventional electronic approaches.