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Interference Technology

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Vancouver Café Blocks Wireless Signals

 

A new pop-up café in Vancouver, Canada is offering patrons a temporary escape from digital communication. Julien Thomas, a Vancouver construction worker and social artist, is opening The Faraday Café in Vancouver’s Chinatown with assistance from Hughes Condon Marler Architects. The café, which will be open July 2-16, is named after the Faraday cage, an enclosure made of a … [Read more...]

Semi-Shielded Power Inductor Series for DC/DC Converter Power Management Applications

 

Electronic component manufacturer Bourns, Inc. has released a new series of semi-shielded power inductors. The semi-shielded SRM model series combines the features of non-shielded and shielded inductors, making them ideal for use in DC/DC converters, which provide power management to mobile electronic devices, computers, data storage devices and consumer electronics. The SRN … [Read more...]

Congress Pushing for Grid Vulnerability to EMP Assessment

 

Congress has expressed interest in learning more about the capabilities of America’s adversaries to damage the nation’s power grid. Watchdog.org reports an intelligence authorization bill passed by the House of Representatives last month includes a provision directing the director of national intelligence to submit to Congress “a report on the threat posed by man-made … [Read more...]

Improving Graphene/Polymer Composites for EMI Shielding

 

Researchers in China have discovered a way of improving how graphene is used in polymer segregated composites for electromagnetic shielding, using a novel in situ thermal reduction technique that maximizes electromagnetic interference shielding effectiveness (EMI SE) while reducing agglomeration.  The use of graphene to build up polymer segregated conductive networks in … [Read more...]

Medical-Grade Heat-Shrink Tubing for Cable Shielding

 

Methode Electronics, Inc. has released new medical grade shrinkMate™ heat-shrink tubing, which provides easy-to-apply shielding at the cable-to-connector joint, a common point of leakage. Made of clear medical grade polyester, the lightweight tubing shrinks when heat is applied to firm a conductive seal around an object, providing EMI, RFI and ESD shielding without the use of … [Read more...]

Nickel-Coated Graphite Fiber Particle Additive for EMI Shielding

 

FigerGraf Materials has introduced a new nickel-coated graphite fiber particle additive for EMI/RFI shielding applications. GrafMat A280N60 offers a 280 micron average particle size, while GrafMat A90N60 is about one-third smaller at 90 microns. The particles of both grades are coated with 60 percent weight addition nickel that encapsulates each particle … [Read more...]

Dead Spacecraft Gives Insight into ‘Bermuda Triangle of Space’

 

A decade-old European satellite has given Italian scientists a detailed look into a dangerous radiation zone located a few hundred kilometers above the coast of Brazil. Known as the South Atlantic Anomaly (SAA), or “Bermuda Triangle of Space,” the region has reportedly caused satellites and telescopes to malfunction and temporarily affected astronauts’ eyesight. According to … [Read more...]

Shielded Test Boxes for R&D, Quality Control and Wireless Coverage Testing

 

Select Fabricators has introduced new lightweight, collapsible RF shielding boxes designed to facilitate better testing of wireless devices for R&D, manufacturing quality control and coverage testing for cellular carriers. Ideal for use by electronics testing laboratories in the commercial and industrial wireless, automotive, aerospace and defense industries, the new … [Read more...]

Man-Made Electromagnetic Noise Disrupts Bird Navigation

 

Scientists have known for decades that migratory birds orient themselves using the Earth’s magnetic field in order to fly in the right direction. Now, German researchers have documented for the first time that man-made electromagnetic radiation interferes with these birds' internal compasses. The phenomenon was discovered by Henrik Mouritsen, a professor of neurosensory … [Read more...]

Genetic Approach Yields New Broadband Metamaterial

 

Researchers have created a specially-formed material using genetic algorithms they say could shield objects from detection by infrared sensors, protect instruments and be modified to cover a variety of wavelengths. "The metamaterial has a high absorption over broad bandwidth," Jeremy A. Bossard, postdoctoral fellow in electrical engineering at Penn State, said. "Other screens … [Read more...]

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