Press Release Category: Telecommunications

Efficient satellite downlink with a Ka band dual circular polarization transmitter

Credit: Tokyo Tech Low earth orbit (LEO) satellites are being increasingly used for environmental monitoring of the earth, as well as for logistic purposes, such as the navigation of maritime vessels. The data transmitted from the satellite terminals to the receivers on Earth, known as “downlink,” is steadily increasing and, as a result, requires new

AT&T rolls out cutting-edge 911 call tracking technology

Credit: Pixabay/CC0 Public Domain When someone calls 911, seconds matter. That’s why the first question a 911 dispatcher asks is, “What is the address of the emergency?” A decade ago, if someone called and didn’t know the address, emergency call centers would send out police officers with their sirens on and tell the caller, “Tell

Verizon, AT&T delay some 5G service over airlines’ concerns

A JetBlue passenger flight lands at Reagan Washington National Airport in Arlington, Va., across the Potomac River from Washington, Wed., Jan. 19, 2022. On Friday, June 17, 2022, federal regulators said Verizon and AT&T will delay part of their 5G rollout near airports to give airlines more time to ensure that equipment on their planes…

Introducing a transceiver that can tap into the higher frequency bands of 5G networks

Credit: Tokyo Tech 5G networks are becoming more prevalent worldwide. Many consumer devices that support 5G are already benefiting from increased speeds and lower latency. However, some frequency bands allocated for 5G are not effectively utilized owing to technological limitations. These frequency bands include the New Radio (NR) 39 GHz band, but actually span from…

Space-enabled system to digitalize airspace goes global

Engineers are shown testing Iris equipment to exchange messages in real-time with a flight control facility from a Cessna plane, which took off from Amsterdam Schiphol airport and flew over the Netherlands and the North Sea for three hours to test the system’s connection. Credit: European Space Agency A space-enabled system to help clear congested…

‘Beam-steering’ technology takes mobile communications beyond 5G

The beam-steering antenna technology has been developed to increase the efficiency of fixed base station antenna at 5G (mmWave) and 6G, and can also be adapted for vehicle-to-vehicle, vehicle-to-infrastructure, vehicular radar, and satellite communications. Credit: University of Birmingham Birmingham scientists have revealed a new beam-steering antenna that increases the efficiency of data transmission for ‘beyond…

Sustainable connectivity in space

Artists impression of a OneWeb satellite to be deorbited at the end of its active lifetime. Credit: OneWeb The world’s first mission to remove several small telecommunications satellites from orbit once they reach the end of their operational service is about to start building and testing its prototype spacecraft. British-based in-orbit servicing company Astroscale—working in…

Researchers teleport quantum information across rudimentary quantum network

Alice, the receiver of the teleported quantum information. Inside the black aluminium cylinder, the diamond sample is cooled to -270°C, to reduce the noise from the environment and enable the quantum control. Credit: Marieke de Lorijn for QuTech Researchers in Delft have succeeded in teleporting quantum information across a rudimentary network. This first of its…

Using existing undersea fiber cables to detect seismic events

Detection of the Northern Peru earthquake. (A) Map of the cable sections used in this measurement. Sections e, g and h correspond to sections S3, S4 and S5 in Fig. 2C. (B) Time series and spectrograms of the signals detected on the 9 spans under test. The panels labeled “Entire cable” shows the time series…

Eavesdroppers can hack 6G frequency with DIY metasurface

Rice University graduate student Zhambyl Shaikhanov holds a foil sheet he used to create a “metasurface”—a paper sheet covered with a 2D foil pattern—that an eavesdropper could use in a “Metasurface-in-the-Middle” attack to redirect part of a high-frequency “pencil beam” transmission like those planned for 6G wireless networks. Credit: Jeff Fitlow/Rice University Crafty hackers can…

Remote sensing facilitates sustainability of Bagan heritage site, Myanmar

Structural instability observed from InSAR measurements of the Gawdawpalin Pagoda. Credit: AIR As a UNESCO World Heritage site, Bagan in Myanmar is home to more than 2, 200 structures, including pagodas and temples constructed from the 10th to the 14th centuries. However, its age, combined with the surface subsidence and earthquakes over the region have…

NIST finds wireless performance consistent across 5G millimeter-wave bands

Wireless transmissions can take many routes to the intended receiver. The colored lines are reconstructions of measured paths of millimeter-wave signals between a transmitter (not visible) and receiver (lower middle) in a NIST industrial control room. Each path is precisely characterized in terms of length and angle to the receiver. These paths are all secondary,…