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...]
EMC LIVE 2014
EMC LIVE 2014 October 14 - 16, 2014 EMC LIVE is a brand new, three day online event hosted by Interference Technology. Featuring practical information on a variety of EMC topics, this event will include virtual roundtables, webinars and videos. Best of all, there is no cost to attend! Visit EMC LIVE for more information. … [Read more...]
Florida Man Fined for Blocking Cell Service on the Road
A Florida man reportedly caught using a cell phone jammer during his daily commute is facing a sizable fine for illegal interference. The Federal Communications Commission announced last week it will fine Jason Humphreys of Seffner, Fla. $48,000 for use of a signal jamming device, which work by transmitting signals that overpower, block or interfere with authorized … [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...]
Study Finds No Danger from Magnetic Fields in Electric Vehicles
An international study has concluded the electromagnetic radiation produced by the electric motors powering hybrid, plug-in hybrid, all-electric and hydrogen fuel cell cars to be harmless to passengers inside the vehicles. The EU-funded study, led by Norwegian independent research organization SINTEF, looked at the intensity of magnetic fields in seven electric cars, one … [Read more...]
Data Centers Vulnerable to EMPs, Say Experts
Data centers, used to house computer systems and associated components such as telecommunications and data storage systems, store everything from classified government information to personal photos posted on social media websites. Designers must consider a number of key factors when constructing a data center facility, including site selection, mechanical and electrical … [Read more...]
Integrated Chokes Feature Reduced Footprint and Increased Efficiency
Pulse Electronics Corporation has announced the release of the PA4040 series of chokes, which integrate a common mode (CM) and differential mode (DM) choke into the same component. According to the company, combining two separate magnetic components into a single integrated component reduces power losses across the EMI filter portion of the power supply because it reduces the … [Read more...]
Wideband 2.2 GHz to 7.6 GHz Coaxial Lightning Protection for LTE, Wi-Fi and WiMAX Applications
NexTek, Inc., a provider of lightning protection and EMC/power conditioning products and services, has released a new line of SurgeGuard quarter wave stub lightning protectors. Designed for Wi-Fi, WiMAX, satellite, LTE and ISM applications, the QWS600 series exceeds 802.11, UNII, ISM and MIL-STD-202 standards for usage between 2.2 GHz and 7.6 GHz. Measuring only 63.9 mm … [Read more...]
EMI Shielding Compounds for Automotive Radar and Sensing System Components
Thermoplastics compounder RTP Company has developed new EMI shielding compounds ideal for replacing metal or conductive coated plastic housings in automotive sensing systems. Automotive radar and sensing systems designed to maintain vehicle safety and reliability require EMI protection to eliminate “noise” that could interfere with signal processing, the company says. As the … [Read more...]
Linearization of EMC Amplifiers and Fixing the Broken Automotive Emissions Test Fixture
Read other posts in the "Elephant in the Test Room" series here.Linearization of EMC AmplifiersThis section of the posting got a little long-winded but it at least serves two purposes. It is a step closer to closing Elephant in the Test Room #2 ‘Disharmony in Harmonic Limits,’ and it also helps determine the linearization target on the TWT amplifier we are working with.The … [Read more...]
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