Electrical, Electronics, and Avionics

Wireless communication systems

Stories

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Briefs: Connectivity
A research team led by Rice University’s Edward Knightly has uncovered an eavesdropping security vulnerability in high-frequency and high-speed wireless backhaul links, widely employed in critical applications such as 5G wireless cell phone signals and low-latency financial trading on Wall Street. Read on to learn more.
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Briefs: Photonics/Optics
In a paper published in the journal Nature Nanotechnology, a team of Caltech engineers reports building a metasurface patterned with miniscule tunable antennas capable of reflecting an incoming beam of optical light to create many sidebands, or channels, of different optical frequencies. Read on to learn more.
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Briefs: Information Technology
Researchers have developed a new method for predicting what data wireless computing users will need before they need it, making wireless networks faster and more reliable. The new method makes use of a technique called a “digital twin,” which effectively clones the network it is supporting. Read on to learn more.
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Briefs: Data Acquisition
Researchers have achieved data rates as high as 424Gbit/s across a 53-km turbulent free-space optical link using plasmonic modulators — devices that uses special light waves called surface plasmon polaritons to control and change optical signals. The new research lays the groundwork for high-speed optical communication links that transmit data over open air or space. Read on to learn more.
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Briefs: RF & Microwave Electronics
With a goal to revolutionize cellular communications, Penn engineers have developed an adjustable filter that can successfully prevent interference, even in higher-frequency bands of the electromagnetic spectrum. Read on to learn more about the matter.
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Briefs: Connectivity
Scientists have pioneered a method for using semiconductor technology to manufacture processors that significantly enhance the efficiency of transmitting vast amounts of data across the globe. The innovation is poised to transform the landscape of wireless communication. Read on to learn more.
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Briefs: Photonics/Optics
Making Satellite, Ground Communication More Effective
Rensselaer Polytechnic Institute’s Moussa N’Gom has devised a method to make communications between satellites and the ground more effective — regardless of the weather.
Application Briefs: Internet of Things
The Industrial Internet of Things — sharing, collecting, and analyzing information across a complete manufacturing enterprise — can significantly enhance the bottom line. Not only in monetary terms but also in the quality and reliability of the products and the ability to deliver them on time.
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Briefs: Photonics/Optics
Making Satellite, Ground Communication More Effective
Rensselaer Polytechnic Institute’s Moussa N’Gom has devised a method to make communications between satellites and the ground more effective — regardless of the weather.
Briefs: Electronics & Computers
A new paper on wireless connectivity from researchers at the lab of Dinesh Bharadia, an affiliate of the UC San Diego Qualcomm Institute (QI), introduces a new technique for increasing access to the 5G-and-beyond millimeter wave (mmWave) network.
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Briefs: Sensors/Data Acquisition
The University of Maine’s Wireless Sensor Networks laboratory has developed a novel method of using AI and machine learning to make monitoring soil moisture more energy and cost efficient.
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Articles: Sensors/Data Acquisition
Learn about LoRaWAN networking as a solution for connecting wireless sensors at long distances, while extending battery life.
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Articles: Connectivity
In the coming years, the wireless communications segment will expand significantly as 5G private networks launch.
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Briefs: Connectivity
This device could pave the way to higher-bandwidth wireless communications.
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Briefs: Test & Measurement
The innovation opens the door for faster and more affordable at-home medical testing.
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Briefs: Data Acquisition
Engineers have added a new capability to electronic microchips: flight. About the size of a grain of sand, the new flying microchip (microflier) does not have a motor or engine. Instead, it catches...
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Briefs: Communications
Classical laser communication gimbals are coupled to 105um multimodal receiving fibers for the high-power transmission of data, fine pointing, and tracking. These fibers cannot be used in free...
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Briefs: Photonics/Optics
A new research focusing on topological control capabilities in an integrated acoustic-electronic system at technologically relevant frequencies could pave the way for additional research on...
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Briefs: Communications
Light-emitting diode (LED)-based communications techniques allow computing devices, including cellphones, to communicate with one another using infrared light. However, LED techniques...
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Briefs: Sensors/Data Acquisition
Researchers have developed electronic skin (e-skin) that is applied directly on top of real skin. Made from soft, flexible rubber, it can be embedded with sensors that monitor...
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Briefs: Communications
Inside every cellphone lies a tiny mechanical heart, beating several billion times a second. These micromechanical resonators play an...
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Articles: Sensors/Data Acquisition
Automation can crumble, even when only one cog is loose, says Brad Walters from Monnit.
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Briefs: Wearables
The mobile phone app enables regular monitoring of glucose levels in people with diabetes.
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Briefs: Wearables
Researchers successfully demonstrated the use of the human body as a medium for transmitting and harvesting energy to power wearables.
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Briefs: Energy
In-wall capacitors power lights, phones, and laptops without wires.
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Articles: Communications
Breath-regulating garments, humidity sensors, thin-film antennas, and more.
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Articles: Imaging
These 12 products are the nominees for the 2021 Tech Briefs Readers’ Choice Product of the Year.
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Briefs: Robotics, Automation & Control
This practical technique uses magnetism to transmit electricity wirelessly to recharge electric cars, robots, or drones.
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Briefs: RF & Microwave Electronics
The phased array antenna based on large-area electronics technology could enable many uses of emerging 5G and 6G wireless networks.
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