Today's Tech News: Notable or Not?

https://www.light-am.com/article/doi/10.37188/lam.2026.097 "wireless charging setups struggle with spatial misalignment, low efficiency, poor adaptability, when powering moving/ dynamic devices... overcome without relying on fixed cables, by integrating digital metasurface, controlled via field-programmable gate array energy source, employing rectenna receiver at each of multiple targets... ensures continuous, high-efficiency energy delivery regardless of position/ movement... scalable: battery-free IoT hardware, ambient wireless charging infrastructure"

https://techxplore.com/news/2026-07-powered-chip-harvests-energy-chemicals.html "compact monolithic 3D IC  harvests indoor/ outdoor light eliminating need for battery recharging...  highly responsive graphene-based sensor layer... processes/ interprets sensor telemetry locally without requiring persistent connection to electrical grid/ bulky battery packs... applicable for Internet of Things establishing a self-sustained hardware platform uniquely optimized for long-term deployment in remote or hazardous environments where physical battery replacement is impossible"

https://techxplore.com/news/2026-05-power-flexible-radio-frequency-transistors.html "high-frequency components flexible substrates hindered by low thermal conductivity causing severe self-heating/ transistor performance destruction as dimensions shrink... overcome with electrothermal co-design structuring device contacts/ gate stack actively dissipating heat through the layout... flexible polyamide substrates, 102 GHz power-gain cut-off, < 200 milliwatts per millimeter ultra-low power profile... proves high-speed radio-frequency performance survives mechanical bending"

https://phys.org/news/2026-04-ai-chips-faster-nanometer-embedded.html "extreme thinness in ferroelectric aluminum scandium nitride disorders crystal structure/ loses ability to hold charge... overcome depositing on top of platinum electrode to which specific heat treatment has already been applied, forcing perfect alignment of crystals as they grow... logic-embedded memory enables high-speed switching... vertical scaling... IoT, AI smartphones (on-device)"

https://www.eurekalert.org/news-releases/1121001 "6G promises THz, but silicon struggles with high power consumption/ heat generated, overcome using 5G/ graphene not needing power-hungry local oscillator to down-convert high-frequency 6G/ overcome graphene's low light absorption integrating sub-THz cavity echo chamber with built-in antenna/ mirror trapping radiation exactly where graphene most sensitive... integrated directly into computer processors, scalable/ existing semiconductor fabrication compatible... best use: chip-to-chip/ hyper- local links"

https://phys.org/news/2026-03-hall-rectenna-ghz-frequency-range.html "converting RF into DC electricity relies on diodes which do not efficiently capture high-frequency signals, overcome by instead relying on Hall effect/ high-mobility semiconductor heterostructures bypassing resistor-capacitor time constant to operate into tens of GHz... generates power entirely from even very weak ambient RF without need for batteries... small sensors for smart homes, industrial monitoring, wearables, deep space/ remote sensing, self-powered IoT/ internet of everything" Related: Controlled epitaxial growth of perovskite single‑crystal heterojunction arrays for self‑powered imaging https://www.eurekalert.org/news-releases/1132481 Researchers create moisture-driven tech that powers green batteries — and dissolves spy gear https://news.rice.edu/news/2026/researchers-create-moisture-driven-tech-powers-green-batteries-and-dissolves-spy-gear Wireless energy internet roadmap charts path to light, ...

https://www.eurekalert.org/news-releases/1117558 "thin film structurally flexible/ tunable, unlike bulk ceramics... high-entropy/ defect engineering achieving high energy density, high breakdown strength/ stability across wide temperature ranges/ high voltages/ rapid charge-discharge... miniature: aerospace electronics/ wireless communications, medical implants, IoT devices... more efficient/ renewable energy storage, safer medical devices, multilayer ceramic capacitors used in EVs/ automotive electronics/ power inverters"

https://techxplore.com/news/2026-01-durable-polymer-based-flexible-rf.html "maintains electrical performance even after 1,000s bending/ stretching cycles... communication systems for flexible, bio-inspired robots... manufacturing process compatible with existing printing technologies, suggesting that they could be produced cost-effectively at scale. Overall, the breakthrough represents a move toward truly "seamless" flexible electronics where the wireless components are as bendable and rugged as the devices they power... wearables, foldable devices" Related: Stretchy plastics conduct electricity via tiny, whisker-like fibers https://phys.org/news/2026-02-stretchy-plastics-electricity-tiny-whisker.html

https://techxplore.com/news/2026-02-miniaturized-radar-chip-generation-wireless.html "overcomes chirp speed/ measurement accuracy trade-off... avoids complex digital predistortion, instead uses ramp tracker/ voltage-controlled oscillator calibration block... balances n-/p- channel metal-oxide-semiconductor varactors with opposing nonlinear characteristics to self-compensate for distortions. core circuit only 0.24 mm², mere 9.8 mW power, 1562.8 MHz/μs chirp rate at 1 GHz, 0.094% frequency modulation error... handles high-speed data and precise distance/ motion sensing simultaneously"

https://www.eurekalert.org/news-releases/1113462 "P2P often disorganized/ random leading to redundant data transmission/ congestion/ high queuing delays, network topology (not protocol itself) primary cause of sluggishness... if neighbor consistently slow, node automatically disconnects/ seeks faster peer... decentralized algorithm analyzes data devices already receiving so doesn't drain battery/ processing power... 50-node IoT: 48.54% block-related delay reduction... smart cities/ homes/ industrial, secure/ instant health data sharing from wearable sensors"

https://phys.org/news/2025-12-framework-2d-materials-printable-electronics.html "predicting 2D materials that can be successfully formed into nanosheets via electrochemical exfoliation... key factor: in-plane must be higher than out-of-plane stiffness" (resistance to: deformation vs. deformation perpendicular to material)... dozens of 2D semiconductors identified... printed transistors, and for 1st time printed: digital-to-analog converters, BASK communication circuits, wearable sensors, smart packaging, disposable IoT... future: reduce performance limits in junctions between nanosheets (flake-to-flake)" Related: Analog hardware may solve internet of things’ speedbumps and bottlenecks https://www.eurekalert.org/news-releases/1113506

https://www.eurekalert.org/news-releases/1105887 "incorporates different capacitors on radiating patch, meta-atoms integrating initial radiation/ scattering phases...achieves cost-effective phased arrays... 12×12" metasurface achieves grating-lobe-free single-beam scanning over a ±45° range, with sidelobe level better than 10 dB... facilitates wireless energy harvesting... meta-surface reflected beam dynamically controlled, with >7 db average increased signal power density within blind zones... integrates: communication, sensing, decision-making, power supply"

https://www.eurekalert.org/news-releases/1106053 "double-layer lens automatically adjusts beam spot size based on receiver's distance (up to 5m)/ size... adjustable reflector controlled by 2 stepping motors rotating horizontally/ vertically... retroreflective sheets placed around PV receivers' edges, reflecting IR from depth camera's projector, creating clear outline, allowing: accurate shape/ position detection, target area isolation, minimized environmental interference... sequentially targets multiple PV receivers of different sizes/ distances, switching between them rapidly"

https://phys.org/news/2025-10-dual-torque-electron-magnetic-domain.html "faster, smarter, more energy-efficient electronic devices... spintronic memory reading or writing requires efficiently shifting domain walls... artificial antiferromagnetic thin film of cobalt/ Iridium/ platinum alternating layers... 2 cobalt layers coupled aligning magnetic moments in opposite directions... platinum layers generate electron spin streams via Spin Hall Effect spin torque on cobalt layers' magnetic moments... spin torques from top/ bottom platinum layers combine as dual-torque moving domain walls" Related: Optical technique reveals hidden magnetic states in antiferromagnets https://phys.org/news/2026-01-optical-technique-reveals-hidden-magnetic.html Robust topological hall signatures in layered ferromagnet FePd₂Te₂ enables new spintronic technologies https://www.eurekalert.org/news-releases/1127231

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://www.eurekalert.org/news-releases/1089288 "allows up to 1 million IoT devices/ square km sporadically send small data bursts... grant-free communication allows devices to send data without prior authorization, reducing processing/ power consumption in end devices, scheduling operations in base stations... data collision risk overcome using analysis systems with randomly distributed elements... interference cancellation improved base station throughput up to 20%, most effective for devices at intermediate distances... fairness/ throughput trade-off"

https://techxplore.com/news/2025-06-faster-multiplexing-6g-earth-orbit.html#google_vignette "time-division Multiple-Input Multiple-Output phased-array receivers operate faster, low power, exceptional area efficiency... reduces circuit complexity including for non-terrestrial nodes, by reusing signal paths through fast switching, record-setting 38.4 Gbps data rate across 8 streams in 65 nm CMOS... seamless integration between terrestrial/ satellite networks... overcomes circuit complexity growing proportionally to product of antenna quantity and MIMO streams, using time-division MIMO... IoT, LEO satellites, mobile" Related: 200 Gbps 6G wireless link successfully demonstrated https://techxplore.com/news/2025-08-gbps-6g-wireless-link-successfully.html Sharper LEO navigation through outer-loop framework https://www.eurekalert.org/news-releases/1120306 Antenna array could provide protected tactical satellite communications in low-Earth orbit https://techxplore.com/news/2026-06-ant...

https://techxplore.com/news/2025-06-intelligent-sensors-energy-enabling-efficient.html "Sensing Parametric Ising Node, developed using Ising model... no toxic lithium or any other type of batteries for power, no periodic maintenance... makes accurate decisions on its own, responding to multiple data sources simultaneously... cold-chain wastage reduction... allows centralized AI/  machine learning to process unprecedented volumes wireless sensing data from multiple sensors... central node will not need deep use of cloud resources and will have a much clearer and more accurate view of what is going on"

https://www.eurekalert.org/news-releases/1082003 "multipath challenges: time delays, altered amplitudes, ghosting, fading... passive metasurface-based filtering using time-varying interlocking mechanism incorporating metasurface panels/ internally coupled circuit elements, including metal-oxide-semiconductor field-effect transistors... enhances 1st incoming signal 10 dB, rejecting time-delayed signals from other angles, without active biasing/ control systems... uses simplified antenna designs/ commercial diode products, few: calculation/ modulation/ demodulation circuits"

https://www.eurekalert.org/news-releases/1076318 "enhances positioning accuracy, addressing dynamic inclination changes and signal blockages, employing graph optimization estimating robot's pose/ identifying unknown LED locations, with 10 cm positioning accuracy/ inclination precision within 1°, reported 100% blockage detection rate... photodiode and LED miniaturization/ low cost enables alternative to Simultaneous Localization and Mapping in robotics field... robotics, wearable devices, Automated Guided Vehicles/ robotic arms... IoT-driven applications"