DARPA’s Terahertz Breakthrough Could Help Ease Spectrum Crunch

English: The electromagnetic spectrum. The scarcity of intense broadband sources of radiation in the 10 12 hertz (terahertz) frequency range leaves us blind to a wide range of interesting phenomena. (Photo credit: Wikipedia)
English: The electromagnetic spectrum. The scarcity of intense broadband sources of radiation in the 10 12 hertz (terahertz) frequency range leaves us blind to a wide range of interesting phenomena. (Photo credit: Wikipedia)

Administrators at Defense Advanced Research Projects Agency celebrated their first Guinness World Record last week for sponsoring the creation of the world’s fastest solid-state amplifier integrated circuit. At a ceremony in Arlington, VA, the Guinness representative joked it was the geekiest record ever.

The amplifier, which was developed by Northrup Grumman, can operate at 1 THz frequencies—about a trillion cycles per second—significantly faster than the existing record of 850 GHz that was set in 2012. It opens the door to the creation of terahertz radio, which could transmit exponentially greater amounts of data than today’s radios. Possible applications include covert satellite communications or the transfer of large amounts of data at close proximities. It also could be used for more detailed imaging and sensing. Think radar on steroids.

What we won’t see is terahertz-based telecommunications networks on earth or PCs running at terahertz speeds any time soon. In terms of communications, the sub-millimeter waves that make up the terahertz spectrum don’t travel well through the earth’s atmosphere. While terahertz computers are a theoretical possibility, today’s computers run on digital chips. DARPA’s breakthrough is an analogue chip that amplifies an analogue signal. In comparison, the world’s fastest desktop CPU, Intel’s 8-core Haswell-E has a maximum clock speed of 3.5GHz.

Still, Dev Palmer, the manager of DARPA’s Terahertz Electronics Program, said the nano-sized transistors that were developed for the amplifier could be instrumental in building next generation telecommunications networks known as 5G. Researchers are exploring how 5G networks could take advantage of little used spectrum in the 30 to 300 GHz range. This is known as millimeter wave communications in reference to the wavelengths of these frequencies. The 5G vision includes replacing the so-called last-mile fiber connection with wireless broadband and low-interference, highly dense small cells. This would help alleviate that so-called spectrum crunch in which ever-increasing amounts of wireless data is squeezed into the limited set of frequencies currently controlled by mobile carriers.

Read more . . . 

 

The Latest on: Terahertz radio

[google_news title=”” keyword=”Terahertz radio” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]

via Google News

 

See Also

The Latest on: Terahertz radio
  • To 6G and beyond: Engineers unlock the next generation of wireless communications
    on May 24, 2024 at 7:49 am

    In the early 2010s, LightSquared, a multibillion-dollar startup promising to revolutionize cellular communications, declared bankruptcy. The company couldn't figure out how to prevent its signals from ...

  • Radio 5 Live - Listen Live - BBC Sounds
    on May 21, 2024 at 5:00 pm

    Eleanor Oldroyd: 30 years of "my radio family" Eleanor Oldroyd on 30 years of broadcasting at 5 Live.

  • Radio 4 - Listen Live - BBC Sounds
    on May 21, 2024 at 5:00 pm

    Unique skills enabled a young man to escape captivity repeatedly, and return to the fray. Flowers of the Portuguese Revolution Jon Snow reflects on reporting from the front line of revolutionary ...

  • TED Radio Hour
    on May 16, 2024 at 5:00 pm

    TED Radio Hour Exploring the biggest questions of our time with the help of the world's greatest thinkers. Host Manoush Zomorodi inspires us to learn more about the world, our communities, and ...

  • What is 5G? Speeds, coverage, comparisons, and more
    on May 14, 2024 at 8:35 am

    Is there really a big difference between 5G and 4G mobile data? We’ll answer that question and many others in this all-you-need-to-know 5G guide.The Latest Tech News, Delivered to Your Inbox ...

  • Scientists could make blazing-fast 6G using curving light rays
    on May 11, 2024 at 5:00 pm

    Researchers have discovered a way to curve data-carrying terahertz signals around obstacles, paving the way for ultrafast 6G. The future of cellular data transfer could lie in "curving" light ...

  • Americans Listen To Far More Radio Than Podcasts—Even Young People, New Data Shows
    on April 30, 2024 at 8:08 am

    American adults still spend an overwhelming majority of their daily listening time on radio broadcasts despite the rise in popularity of podcasts and music streaming services, new Nielsen data on ...

  • New research reveals terahertz waves' impact on dynamics of nanoconfined water molecules
    on April 29, 2024 at 5:00 pm

    Their study, published in Science Advances on April 24, delves into how terahertz (THz) waves influence the dynamics of water molecules confined in two-dimensional (2D) spaces within nanoresonators.

  • First curved data link side-steps key 6G wireless challenge
    on April 20, 2024 at 12:02 am

    In a study published in Communications Engineering, the researchers demonstrated a sub-terahertz beam that follows ... propagates in all directions like a radio broadcast, in the future for ...

  • Terahertz Kerr effect
    on April 17, 2024 at 5:04 am

    Researchers have now demonstrated this effect using single-cycle terahertz pulses — instead of optical pulses — in a variety of liquids. In a laser system, the Kerr effect can be used to ...

via  Bing News

 

 

What's Your Reaction?
Don't Like it!
0
I Like it!
0
Scroll To Top