Economical Low Frequency (LF) Active Antenna Economical Low Frequency (LF) Active Antenna
  • At about $200, ideal as a low cost option for radio frequency receivers for astronomical observations
  • Designed for economical production and rapid, on-site assembly by relatively untrained personnel for use in arrays of antennas
  • Can operate independently or as part of a long wavelength array for astronomical radio telescope applications
NRL's Magnetically Attracted Fluid System (Code 8230). The system allows fluid transfer in conditions where the host and target systems are moving independent of each other at unknown and uncontrolled relative rates. Magnetically Attracted Fluid Transfer System

NRL in partnership with the Defense Advanced Research Projects Agency (DARPA) have developed a new system where a refueling vehicle can be operated autonomously or remotely to fuel a vehicle with a magnetically coupled rapid-breakaway fuel transfer system. The system provides a self-aligning magnetic connection between the host system and a target system. The magnetic connection includes a transferrable puck that the host system manually or autonomously attaches to a target vehicle’s fuel receptacle. Enhancing the system with a controllable electromagnet, it can directly control when the puck is transferred or if a connection should be maintained during refueling. The magnetic connection differential allows the puck to connect to the target system, and in the case of a jolt to the system, the magnetic connection will be lost to the host system while the puck remains connected with the target.

Left: sandwich with photovoltaic panel, wiring, antenna. Right: step design, which better radiates excess heat, patent pending. (Photos: Jamie Hartman, NRL) Step Variation of Sandwich Module for Space Solar Power Satellite
  • New “step” architecture for space solar module (patent pending) better radiates heat
  • Module four-times more efficient at converting sunlight to microwave energy than closest competitor
  • Assembled in satellite array, modules could beam power to on-Earth receiver, providing sustainable, base-load power for a city or military missions
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