DARPA clears path for advanced communications, sensors

DARPA clears path for advanced communications, sensors

DARPA researchers have created the world’s first solid state receiver to demonstrate gain at 0.85 terahertz (THz).

This is the latest breakthrough in the DARPA THz Electronics program in its quest for transistor-based electronics that will enable electronic capabilities at THz frequencies. This represents progress toward the second major technical milestone on the way to 1.03 THz integrated circuits. Previous milestones included demonstrations at 0.67 THz. Operating at these high frequencies enables a host of DoD electronics capabilities such as advanced communication and sensor systems.

“Realizing circuits at 0.85 THz is a remarkable achievement for the program and is the latest success from a long-term investment in frequency-scaled RF transistors,” explained John Albrecht, DARPA program manager. “The ability to coherently process signals at 0.85 THz provides a means to generate and radiate the high frequency signals needed for applications such as ’s Video Synthetic Aperture Radar (ViSAR) program. VISAR seeks to develop and demonstrate a targeting sensor which operates through clouds as effectively as today’s infrared (IR) operate in clear weather. This revolutionary advance would give U.S. warfighters an advantage in an especially challenging portion of the RF spectrum.”


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Citation: DARPA clears path for advanced communications, sensors (2012, August 1) retrieved 15 September 2019 from https://phys.org/news/2012-08-darpa-path-advanced-sensors.html
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Aug 06, 2012
That's very cool. When we get ViSAR to work, it will be another thing we can do that nobody else can. Being able to attack through clouds enables an AC130 gunship to use clouds as defense. A ground enemy under the clouds would not be able to shoot back except blindly.

Aug 20, 2012
With the disturbing opinion that the application lies in the military realm reveals an appalling lack of scientific insight, creativity, and understanding,,,

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