Today's Tech News: Notable or Not?

https://www.eurekalert.org/news-releases/1118068 "programmable metasurfaces require external power, overcome integrating solar cell chip onto each meta-atom harvesting up to 12 mW/cm² far exceeding 0.66 mW/cm² operating consumption (1.3 hours charging powers 24 hours continuous operation... coding method achieves independent multi-beamforming across multiple harmonic frequencies simultaneously, enabling several independent communication channels...  real-time transmitted 4 different image streams to 4 separate users... 17.4 mW/ bit power consumption" Related: High-dimensional multiplexing through vortex electromagnetic wave manipulation by space–time–coding metasurfaces https://www.eurekalert.org/news-releases/1123804

https://www.eurekalert.org/news-releases/1111320 "new 8B13B coding scheme on field-programmable gate array, employing return-to-zero format maintaining balanced number of logical 1 and 0 bits, suppressing visible flicker for stable synchronization... up to 3.48 Mbit/s data rates over approximately 3 m, packet (893 bits) loss rate10^−4 to 10^−5... commercially available: field-programmable gate array, Raspberry Pi, and other electronic parts... autonomous driving (traffic lights/ street lamps transmit data to vehicles)"

https://techxplore.com/news/2025-11-frontend-gbs-pam.html "processes high-voltage, higher-order signals,... fabricated in 28nm CMOS... 1.95 pJ/bit power efficiency... multi-path architecture: signal path divided, each path handling only sub-range of total dynamic range, reducing number of slicers/samplers, decreasing final stage's load, improving linearity-power trade-off, doubling linearity with only 20% power increase... separated Feed-Forward Equalization path for channel loss compensation while handling large input signals... accelerated supercomputers, speed between servers"

https://techxplore.com/news/2025-10-super-thin-semiconductor-thermal-stability.html "high-speed, high-frequency, low-cost, low-temperature, large-area, chip-compatible processing with high carrier mobility, but thermal conductivity inherently low... overcome using high-thermal-conductivity silicon carbide substrate for power amplification above 10 GHz RF, also in DC current... eliminates self-heating even under 3V/ 125°C... future: thin-channel materials for back-end-of-line-compatible electronics, enabling scalable/ energy-efficient RF integration... high-speed: RF power amplifiers, data communications"

https://techxplore.com/news/2025-08-detector-significantly-energy-consumption-generation.html "improved connectivity, spectral efficiency, service quality, ability of signal detection to dynamically allocate computing resources where most needed... as much as 99% less computational load without sacrificing accuracy, near optimal error rates with significantly lower signal-to-noise ratios for accuracy/ efficiency, better: throughput, computational complexity, transmission power, backhaul traffic"

https://www.eurekalert.org/news-releases/1094807 "spectrum handles 10X more data, but easily blocked, overcome using machine-learning shaping transmissions to bending around obstacles/ neural network rapidly adjusting to complex/ dynamic environment... scanning for best path doesn't work for bendable transmissions since infinite ways of curving... learn using neural net training virtually for different obstacles/ environments, using little data... ultra-fast, reliable wireless connectivity for immersive virtual reality, fully autonomous transportation"

https://techxplore.com/news/2024-09-quantum-wireless-chip-scale-communication.html "multiple chiplets in 1 system, instead of a large chip, increases computing power without overheating... faster, more energy efficiency, scalable data transfer. going wireless THz using tiny antennas... high noise-sensitivity of THz mitigated, even during high noise, using: (1) controlling electron behavior of high-frequency exposed signals improving response to certain frequencies, 2D semiconductor quantum well enhancing signal detection ... (2) 2 receivers adjusting reference voltage based on noise levels detected"

https://techxplore.com/news/2024-02-photonics-based-wireless-link-transmission.html "reference signals shifting forward/ backward in time (phase noise) lowers multi-level signal modulation performance and data speed... photonic high frequencies signal generator lowers phase noise... set up 6G 300 GHz wireless communication using stimulated Brillouin scattering laser generating signal, also using on-line digital signal processing demodulating signals increasing to single-channel transmission rate 240 Gb /s using on-line DSP... future: multiplexing and more sensitive receivers, data rate 1 Tb /s... AR"

https://phys.org/news/2023-05-highly-device-polariton-based-coherent-microwave.html "light–matter coupled cavity magnon polaritons at room temperature...  stability and controllability hybrid light–matter coupled... new type polariton, gain-driven polariton stable phase enables coherent emission of microwave photons... outperform STOs and solid-state masers... 1 bnX more powerful and emission quality factor... microwave sources that can be integrated on-chip... frequency tunable... controllability light-matter interaction...  wireless communication systems and quantum computers" Related: Hybrid exciton–polariton particles surprise with negative mass https://phys.org/news/2023-05-hybrid-excitonpolariton-particles-negative-mass.html Breaking symmetry to excite polaritons https://phys.org/news/2023-06-symmetry-polaritons.html

https://techxplore.com/news/2022-05-advancing-5g-wireless.html ""RISs in wireless networks... revolutionary means to transform wireless signal to dynamically programmable one for various networking objectives... RIS can be evolved from the current work on network controlled repeaters and can be deployed in a standard transparent way for current networks—if it is compatible with all current designs and doesn't rely on any new signaling" Related: Airgain's Solar-Powered 5G Smart Repeater Pioneering the Future of Sustainable Connectivity https://www.nacleanenergy.com/solar/airgain-unveils-groundbreaking-solar-powered-5g-smart-repeater-pioneering-the-future-of-sustainable-connectivity

https://scitechdaily.com/breakthrough-in-electrically-tunable-graphene-devices-could-lead-to-the-development-of-beyond-5g-wireless-technology/ "graphene-based tunable THz resonator... gold-foil gate electrode forming bottom reflective mirror. Above it, a graphene layer is book-ended with electrodes, forming tunable top mirror... non-volatile ionic liquid electrolyte layer sits between mirrors, enabling control of top mirror’s reflectivity by changing applied voltage. In middle of device, between mirrors, molecules of alpha lactose, sugar commonly found in milk... controlled by two adjusters"

https://www.optica.org/en-us/about/newsroom/news_releases/2022/february/researchers_use_solar_cells_to_achieve_fast_underw/ "3×3 solar array to create a detection area of 3.4 × 3.4 centimeters, in a 7-meter-long water tank that emulated an underwater channel. Mirrors were used to extend the pathlength of the optical signal, creating a transmission distance of 35 meters. The system showed reliable stability, low power consumption and high performance. As the size of the solar array increases from 1×1 to 3×3, the −20-dB bandwidth increases from 4.4 MHz to 24.2 MHz" Related: Acoustic metamaterial can send complex signals directly between water and air https://techxplore.com/news/2026-03-acoustic-metamaterial-complex-air.html

  https://www.lancaster.ac.uk/news/nuclear-radiation-used-to-transmit-digital-data-wirelessly "potential of fast neutron radiation as a medium for wireless communications for applications where conventional electromagnetic transmission is either not feasible or is inherently limited... fast neutrons have an advantage over conventional electromagnetic waves, which are significantly weakened by transmission through materials including metals... could also be incorporated into... signal mixing being between electrons and neutrons... to ensure the integrity of information transfer"

https://medicalxpress.com/news/2021-10-simultaneous-acoustic-energy-neuroscience-cardiovascular.html "thin, battery-free and flexible implantable system for wireless recharging and communication via ultrasound... automatically determined abnormal heartbeats and responded by simulating the heart electrically... scientists incorporated a fractal serpentine copper pattern placed on a polyimide pattern layer, where the circuit interconnected between chip components. The researchers encapsulated all the components in a soft polydimethylsiloxane (PDMS) layer" Related: Engineers 3D-print personalized, wireless wearables that never need a charge https://news.arizona.edu/story/engineers-3d-print-personalized-wireless-wearables-never-need-charge Scientists develop an energy-efficient wireless power and information transfer system https://techxplore.com/news/2023-09-scientists-energy-efficient-wireless-power.html Charge once, power long: Ultrasonic solution for implantable devices https...