The world’s tallest broadcast tower, the 634 meter Tokyo Skytree, has experienced unanticipated radio interference, despite being twice the height of the next tallest tower in Tokyo - Tokyo Tower. The Sky Tree was completed in May 2012. The transfer of radio wave transmission from Tokyo Tower to Tokyo Skytree was originally planned for January 2013 but has been delayed because … [Read more...]
New Research Suggests Monolayer Graphene is Most Effective Material for EMI Shielding
Scientists have discovered that ultra-lightweight carbon nanostructure-based nanocomposite materials outperform conventional metal shielding due to their lighter weight, cost efficiency, flexibility and resistance to corrosion. The research is an attempt to overcome the weight issue of traditional metal-based EMI shielding in electronic devices in order to produce smaller and … [Read more...]
Debate Over Harmful Effects of Radio Waves Continues
Though the level of general concern about possible harmful effects from radio frequency radiation given off by mobile phones, wireless networks and smart meters has decreased in recent years, a small percentage of the population remains convinced that the electromagnetic radiation from wireless technology is dangerous. Patients with one condition, electromagnetic … [Read more...]
New Three-phase EMI Filters Suppress EMI Emissions
LCR Electronics, Inc., a manufacturer of EMI filters and electronic control products, has released the 096C series of filters for high-current three-phase applications. The filters are designed to handle currents from 250 A to 800 A at 50°C (122°F) and are suited for high current applications that include solar and wind power inverters, uninterruptible power supplies (UPS), … [Read more...]
New EMI Test Receiver Reduces Testing Times
Rohde & Schwarz, a provider of equipment for test and measurement, broadcasting, secure communications, radiomonitoring and radiolocation, has released the ESR EMI test receiver for use in EMC certification on commercial equipment, test houses and EMC labs used by electrical equipment manufacturers and their suppliers. The ESR EMI test receiver is available in a 10Hz to … [Read more...]
Heat-Shrinkable EMI Shield Up to 65 Percent Lighter than Traditional Material
Chomerics Europe, a global manufacturer of electromagnetic interference (EMI) shielding materials, has released the Cho-Shrink 1120, a heat shrinkable product that provides EMI shielding for cables, connectors and cable/connector terminations. Made of polyolefin heat-shrinkable tubing coated with Chomerics’ silver-plated copper system, Cho-Shrink 1120 weighs approximately 40 … [Read more...]
EMI Shielding Materials Provide Protection for Semiconductor Packages
Chomerics Europe, a global manufacturer of electromagnetic interference (EMI) shielding materials, has released the Cho-Shield® 604 and the Cho-Shield® 571, two highly conductive coatings designed to shield circuit boards and semiconductor packages that require protection from EMI. Cho-Shield® 604 is a one-component, silver-filled polyurethane material effective for shielding … [Read more...]
Arizona Rep.: Electric Grid Vulnerable, Needs Protection
Rep. Trent Franks (R-Glendale Ariz.), is sponsoring a bill that calls for tougher regulations of electronic systems in the U.S. He said there's a possibility for an electromagnetic pulse attack or solar storm that could severely disrupt the electric grid. Franks believes there is a risk of an electromagnetic pulse (EMP) attack - a shock wave that can occur naturally but can … [Read more...]
Antenna Company Wins Patent for Invisibility Cloak
Fractal Antenna Systems, Inc. has been awarded the world’s first invisibility cloak patent, marking a milestone in innovation and bringing science fiction a little closer to reality. According to the patent, invisibility is achieved by using a large amount of fractals—shapes made from repeating geometric figures—to surround the object and divert electromagnetic waves around to … [Read more...]
Rugged Embedded DC-DC Power Supply Boards Introduced for Military
Parvus Corporation, a developer of military electronic components and systems, has introduced two rugged embedded DC-DC power supply boards with built-in MIL-STF power conditioning and electromagnetic interference (EMI) filtering to be used for embedded computing applications in military aircraft and ground vehicles. The PC/104-Plus PWR-21-11 and PCI/104-Express PWR-22-11 … [Read more...]
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