Feeds

DARPA chips in on Terahertz research

Solid-state receiver hits 850 GHz

The essential guide to IT transformation

The next frontier for solid-state electronics, the Terahertz boundary, has come a little closer with DARPA announcing a receiver operating at 850 GHz.

Currently, receiving and decoding THz signals requires a frequency down-conversion on the way, because nobody’s produced chips that can operate at such high frequencies. Down-conversion, however, limits the operating power of the receiver, and sets an unwanted floor under its signal-to-noise ratio – and adds to the footprint of the receiver.

In this announcement, DARPA says it’s closing in on the THz range, producing a solid state receiver operating at 850 GHz (0.85 THz).

The agency says this development represents a step towards producing monolithic microwave ICs – MMICs to their friends – that can process the very high frequencies involved. It’s part of a two-part program, one focusing on transistors that can handle signal processing, the other developing the necessary power transistors.

DARPA’s own interest includes communications and its see-through-clouds VISAR (video synthetic aperture radar) program, designed to let fighters operate in conditions that currently inhibit current infrared sensors.

THz electronics are also useful for medical imaging (avoiding the side-effects associated with ionizing radiation – such as X-rays), and a range of industrial processes. ®

Gartner critical capabilities for enterprise endpoint backup

More from The Register

next story
Boffins attempt to prove the UNIVERSE IS JUST A HOLOGRAM
Is this the real life? Is this just fantasy?
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
China building SUPERSONIC SUBMARINE that travels in a BUBBLE
Shanghai to San Fran in two hours would be a trick, though
LOHAN Kickstarter push breaks TWELVE THOUSAND POUNDS
That's right, folks, you've stumped up OVER 9000 beer tokens - and counting
SpaceX prototype rocket EXPLODES over Texas. 'Tricky' biz, says Elon Musk
No injuries or near injuries. Flight stayed in designated area
Galileo, Galileo! Galileo, Galileo! Galileo fit to go. Magnifico
I'm just a poor boy, nobody loves me. But at least I can find my way with ESA GPS by 2017
Astronomers scramble for obs on new comet
Amateur gets fifth confirmed discovery
prev story

Whitepapers

Best practices for enterprise data
Discussing how technology providers have innovated in order to solve new challenges, creating a new framework for enterprise data.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?