Communications

available technology

Distributed time-reversal mirror array

A distributed time reversal mirror array (DTRMA) system includes a plurality of independent, sparsely distributed time reversal mirrors (TRMs). Each of the TRMs includes an antenna; a transceiver connected to the antenna for transmitting a signal toward a target, for receiving a return, reflected...
Economical Low Frequency (LF) Active Antenna
available technology

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...
available technology

Electromagnetic pulse generator

An electromagnetic pulse delivery system for delivering a sufficient amount of energy and waveform to induce a current in target electronic components that disrupt or damage those target electronic components and overwhelm any protective circuitry. The system includes a power source in...
available technology

Embedded wear sensor

Fiber optic filaments are embedded at a bearing surface. In the context of a mechanical bearing system, the filaments wear as the surface wears. Based on the observed amount of light which is transmitted through the filaments, the degradation of the filaments is related in a measurable way to the...
available technology

Emergency ship towing system

A thrust unit having an engine as an external source of motive power for a marine vessel in distress, is delivered by helicopter air drop to a remote seawater location together with other components of the associated towing system, delivered onto the deck of such marine vessel for operational...
Extended Range RFID and Sensor Tag
available technology

Extended Range RFID and Sensor Tag

This scalable technology uses a pair of phase-matched SAW RF tags coupled with a Van Atta antenna array. Typically composed of piezoelectric lithium niobate or quartz, SAW RF tags convert the interrogating signal into a surface acoustic wave, which is then encoded with the tags unique...

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