The new circulator has the potential to double the useful bandwidth in wireless communications
Researchers at the Cockrell School of Engineering at The University of Texas at Austin have achieved a milestone in modern wireless and cellular telecommunications, creating a radically smaller, more efficient radio wave circulator that could be used in cellphones and other wireless devices, as reported in the latest issue of Nature Physics.
The new circulator has the potential to double the useful bandwidth in wireless communications by enabling full-duplex functionality, meaning devices can transmit and receive signals on the same frequency band at the same time.
The key innovation is the creation of a magnetic-free radio wave circulator.
Since the advent of wireless technology 60 years ago, magnetic-based circulators have been in principle able to provide two-way communications on the same frequency channel, but they are not widely adopted because of the large size, weight and cost associated with using magnets and magnetic materials.
Freed from a reliance on magnetic effects, the new circulator has a much smaller footprint while also using less expensive and more common materials. These cost and size efficiencies could lead to the integration of circulators within cellphones and other microelectronic systems, resulting in substantially faster downloads, fewer dropped calls and significantly clearer communications.
The team of researchers, led by Associate Professor Andrea Alu, has developed a prototype circulator that is 2 centimeters in size — more than 75 times smaller than the wavelength of operation. The circulator may be further scaled down to as small as a few microns, according to the researchers. The design is based on materials widely used in integrated circuits such as gold, copper and silicon, making it easier to integrate in the circuit boards of modern communication devices.
“We are changing the paradigm with which isolation and two-way transmission on the same frequency channel can be achieved. We have built a circulator that does not need magnets or magnetic materials,” Alu said.
The researchers’ device works by mimicking the way magnetic materials break the symmetry in wave transmission between two points in space, a critical function that allows magnetic circulators to selectively route radio waves. With the new circulator, the researchers accomplish the same effect, but they replaced the magnetic bias with a traveling wave spinning around the device.
Another unique feature is that the new circulator can be tuned in real time over a broad range of frequencies, a major advantage over conventional circulators.
“With this technology, we can incorporate tunable nonreciprocal components in mobile platforms,” said Nicholas Estep, lead researcher and a doctoral student in the Department of Electrical and Computer Engineering. “In doing so, we may pave the way to simultaneous two-way communication in the same frequency band, which can free up chunks of bandwidth for more effective use.”
For telecommunications companies, which pay for licenses to use frequencies allotted by the U.S. Federal Communications Commission, a more efficient use of the limited available bandwidth means significant cost advantages.
Additionally, because the design of the circulator is scalable and capable of circuit integration, it can potentially be placed in wireless devices.
“We envision micron-sized circulators embedded in cellphone technology. When you consider cellphone traffic during high demand events such as a football game or a concert, there are enormous implications opened by our technology, including fewer dropped calls and clearer communications,” Estep said.
The Latest on: Wireless communications
[google_news title=”” keyword=”wireless communications” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Wireless communications
- OTORIO Reports Vulnerabilities in Sierra Wireless AirLink IIoTon January 31, 2023 at 8:38 am
Sierra Wireless has released updated firmware to address vulnerabilities in its IIoT devices for critical infrastructure. Users are urged to update their devices.
- SBA Communications Corporation Sets Date for Fourth Quarter 2022 Earnings Releaseon January 31, 2023 at 6:02 am
SBA Communications Corporation (NASDAQ:SBAC) ("SBA" and "Company") announced it will release its fourth quarter results on Tuesday, February 21, 2023 after market close. SBA will host a conference ...
- Bell communications services to be sold through Stapleson January 31, 2023 at 5:29 am
Staples Canada and Bell, wholly owned by BCE (BCE) announced a multi-year exclusive agreement to sell Bell, Virgin Plus and Lucky Mobile wireless and ...
- CSE Global makes yet another wireless communications acquisitionon January 31, 2023 at 4:03 am
Tapping on funds raised from a recent rights issue, CSE Global is acquiring two US-based radio communications businesses for US$11 million – its second acquisition of a similar nature in less than ...
- Wireless Communication Technology for Vehicles Market 2023 Industry Growth Status, CAGR Value, Emerging Trends, and Leading Players Forecast to 2029on January 31, 2023 at 1:02 am
Latest [114 Pages] “Wireless Communication Technology for Vehicles Market” Research 2023-2029 demonstrates top ...
- Vehicle Wireless Communication Technology Market for the Period 2023 To 2028: With Top Countries Data Analysis and Latest Development Planon January 30, 2023 at 10:15 pm
Vehicle Wireless Communication Technology Market 2023 is segmented as per type of product and application. Each segment is carefully analyzed for exploring its market potential. A ...
- Where Will Verizon Communications Stock Be in 1 Year?on January 30, 2023 at 6:15 am
Verizon Communications (VZ 1.01%) posted its fourth-quarter report on Jan. 24. The telecom giant's operating revenue rose 3.5% year over year to $35.3 billion, which beat analysts ...
- Here is What to Know Beyond Why Verizon Communications Inc. (VZ) is a Trending Stockon January 30, 2023 at 6:00 am
Verizon Communications (VZ) has been one of the most searched-for stocks on Zacks.com lately. So, you might want to look at some of the facts that could shape the stock's performance in the near term.
- Translate up to 50 languages with these wireless earbuds — 36% off nowon January 29, 2023 at 10:01 am
The Peiko Generation 2 wireless translator earbuds accomplish just that, and it currently comes for a surprisingly low price of $79.99. Normally sold for $125, these innovative earbuds have earned a ...
- Clever wireless transmitter 'appears to violate the laws of physics' at firston January 28, 2023 at 1:03 am
A team of electrical engineers who research wireless systems. During the peer review of our paper about this research, published recently in Proceedings of the National Academy of Sciences, reviewers ...
via Bing News