Feeds

DARPA chips in on Terahertz research

Solid-state receiver hits 850 GHz

Secure remote control for conventional and virtual desktops

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. ®

Boost IT visibility and business value

More from The Register

next story
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
Cutting cancer rates: Data, models and a happy ending?
How surgery might be making cancer prognoses worse
Boffins ID freakish spine-smothered prehistoric critter: The CLAW gave it away
Bizarre-looking creature actually related to velvet worms
CRR-CRRRK, beep, beep: Mars space truck backs out of slippery sand trap
Curiosity finds new drilling target after course correction
SpaceX prototype rocket EXPLODES over Texas. 'Tricky' biz, says Elon Musk
No injuries or near injuries. Flight stayed in designated area
Brit balloon bod Bodnar overflies North Pole
B-64 amateur ultralight payload approaching second circumnavigation
prev story

Whitepapers

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.
5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
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?