A technology often used in satellite and defense applications may drastically improve smartphone performance in the near future by increasing antenna efficiency, according to new research from scientists at the University of California San Diego School of Engineering. Antennas in many modern smartphones do not function optimally in 3G and 4G/LTE wireless environments, say the … [Read more...]
Inductor Tuning Method Could Shrink Cell Phones
Scientists at Northeastern University in Massachusetts have devised a new method of tuning radio frequency circuits that could reduce the size and improve the performance of smartphones and other RF devices. “Every radio-frequency resonance circuit has two components: an inductor and a capacitor. [However,] for the many decades that we've been using RF devices, we've only been … [Read more...]
Next-Gen Flight Control System Vulnerable to Jamming Attacks
An international team of scientists has released research highlighting vulnerabilities in the upcoming next-generation air traffic control system. The new Automatic Dependent Surveillance-Broadcast (ADS-B) system is susceptible to jamming or intentional interference from attackers in possession of a wireless network and off-the-shelf equipment, according to researchers from … [Read more...]
Graphene Nanoantennas May Enable Tiny Networks
Scientists have released new theoretical research that suggests tiny nanoscale antennas made from graphene could overcome the limits of similar antennas fabricated from traditional metal components to enable highly efficient networks of nanomachines. Graphene, a material comprised of a hexagonal structure of carbon atoms, is capable of generating a type of “electronic surface … [Read more...]
Wireless Molecular Network Uses Alcohol to Send Text Messages
Scientists have successfully transmitted a text message via the world’s first wireless molecular network in a breakthrough that could lead to better methods of sending data in challenging underground or underwater environments where electromagnetic waves cannot be used. To send their message, researchers at the University of Warwick in the UK and the York University in Canada … [Read more...]
Optical “Tuning Fork” May Help Stabilize Light Frequencies for Better Electronics
Researchers at the California Institute of Technology (Caltech) have developed an optical “tuning fork” device they say could help improve high-speed communications, navigation and remote sensing by stabilizing the signals of high-quality lasers and the electrical currents needed to power electronics. "When you're tuning a piano, a tuning fork gives a standardized pitch, or … [Read more...]
Shielding Materials Protect Electronics in Radiation-Rich Environments
Engineers at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility have announced the development of new shielding materials to protect sensitive electronics from damage in high-radiation environments such as nuclear power plants, particle accelerators and medical applications. According to Jefferson engineers Paul Brindza and Bert Metzger, the three … [Read more...]
New Tools Combat Wireless Interference
A number of new tools created by MIT researchers to solve wireless network transmission interference problems are being recognized by the National Science Foundation. Dina Katabi, a professor in the department of electrical engineering and computer science at the Massachusetts Institute of Technology, and leader of MIT's networks research group has been working to address … [Read more...]
New Electrical Conductor Outperforms Graphene
A new superconductor made from tin atoms is poised to overtake graphene by becoming the world’s first material to conduct electricity with 100 percent efficiency at the high operating temperatures used by computer chips. Known as “stanene,” the material was discovered by a team of theoretical physicists led by researchers from the U.S. Department of Energy’s (DOE) SLAC … [Read more...]
Stand-Alone Generator for Slow Damped Oscillatory Wave Testing
Teseq, a provider of equipment for EMC emission and immunity testing, has released its new stand-alone generator for slow damped oscillatory wave testing in single phase equipment up to 270 V and 16 A. Ideal for use by power stations, substations, electric meter manufacturers, relays and switch manufacturers as well as EMC testing laboratories that already use Teseq equipment, … [Read more...]
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