With the exponential rise in drone activity, safely managing low-flying airspace has become challenging—especially in highly populated areas. Just last month, an unauthorized drone collided with a "Super Scooper" aircraft above the Los Angeles wildfires, grounding the aircraft for several days and hampering firefighting efforts....
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Sixth-generation, or 6G, cellular networks are the next step in wireless communication, and electromagnetic terahertz waves are seen as crucial to its development. However, terahertz waves, with their higher frequency and shorter wavelength, are subject to greater interference from electromagnetic noise, making clear and secure transmission a challenge....
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As 5G and 6G networks expand, they promise a future of incredibly fast and reliable wireless connections. A key technology behind this is millimeter-wave (mmWave), which uses very high-frequency radio waves to transmit huge amounts of data. To make the most of mmWave, networks use large groups of antennas working...
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Absorbing layers have been fundamental to advancements in technologies like energy harvesting, stealth systems, and communication networks. These absorbers efficiently capture electromagnetic waves across broad frequency ranges, enabling the development of sustainable, self-powered devices such as remote sensors and internet of things (IoT) systems....
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In fall 2024, NASA developed and tested a 3D-printed antenna to demonstrate a low-cost capability to communicate science data to Earth. The antenna, tested in flight using an atmospheric weather balloon, could open the door for using 3D printing as a cost-effective development solution for the ever-increasing number of science...
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In recent years, electronics engineers worldwide have been trying to develop new hardware that could further boost the speed and efficiency of wireless communications. Digitally programmable metasurfaces, advanced artificial materials engineered to manipulate the properties of electromagnetic waves, have been found to be particularly promising for the transmission of wireless...
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A new study has introduced an advanced method for visual-inertial navigation, utilizing a single Ultra-Wideband (UWB) anchor with an unknown position to achieve exceptional positioning accuracy and robustness in environments lacking Global Navigation Satellite System (GNSS) signals....
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AT&T is trying to address one of the biggest frustrations for wireless phone and internet customers—losing service to outages and still paying for it....
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Researchers have found a low-power, inexpensive way for large numbers of devices, such as machines in factories and equipment in labs, to share information by efficiently using signals at untapped high frequencies....
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Researchers at the Department of Energy's Oak Ridge National Laboratory are using non-weather data from the nationwide weather radar network to understand how to track non-meteorological events moving through the air for better emergency response. Weather reports on the news show colorful, near-time representations of clouds and precipitation moving over...
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Researchers have developed a new radar signal–processing technology that can dramatically enhance the resolution of existing low-resolution radars. This technology enables precise object recognition using existing hardware specifications without the need for bandwidth expansion....
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A groundbreaking advancement in technology is paving the way for mobile phones and other electronic devices to recharge simply by being kept in a pocket. This innovative system enables wireless charging throughout three-dimensional (3D) spaces, encompassing walls, floors, and air....
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The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public concern....
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A breakthrough in antenna technology that could revolutionize the future of wireless communications, particularly for the upcoming 6th generation (6G) networks, has been announced by a research team led by Professor Chan Chi-hou, Chair Professor of the Department of Electrical Engineering at City University of Hong Kong (CityUHK)....
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