Scientists at the University of California, San Diego have developed a highly sensitive magnetic material they say could drastically change computer hard drives and electrical grids. Made of thin layers of nickel and vanadium oxide, the material is extremely responsive to heat and requires only a small shift in temperature to alter its magnetic properties. "We can control the … [Read more...]
Coaxial Lightning Arrestor Supports 0 to 6 GHz
AIR802 has introduced model LPNFNF06, a new N female to N female coaxial lightning arrestor or surge protector supporting 0 to 6 GHz. Unlike typical protectors, this corrosion-resistant model is tri-metal-plated to minimize intermodulation distortion (IMD). Additional features include a 90 VDC breakdown voltage, 0.5 dB low insertion loss at 6 GHz, 50 ohm impedance and maximum … [Read more...]
Common Mode Filters Feature Integrated ESD Protection
NXP Semiconductors has announced the availability of a new family of common mode filters with integrated ESD protection for high-speed MIPI D-PHY and HDMI interfaces. The new PCMF series offers a typical common mode rejection of more than 12 dB in the band between 300 MHz and 8 GHz. The PCMF2DFN1 (for two differential line pairs) and the PCMF3DFN1 (for three line pairs) are … [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...]
Power Lines to Help Map Space Weather
A one-to-two-year pilot project scheduled for launch later this year will utilize U.S. high-voltage power lines as a means to better understand solar events that threaten the electric grid. Led by heliophysicist Antti Pulkkinen of NASA's Goddard Space Flight Center in Greenbelt, Md., the research team will use scientific substations installed under high-voltage power … [Read more...]
Laser Technology Could Divert Lightning Strikes
A new next-generation protection system could remove the need for lightning rods and other mitigation measures by preventing lightning strikes from hitting a building entirely. Researchers at the University of Arizona and University of Central Florida have developed a new technology capable of changing the path of lightning bolts using high-energy laser beams. According to the … [Read more...]
Voltage Suppressor Component Provides Power Bus Circuit Protection
ProTek Devices has introduced a new voltage suppressor component to provide power bus circuit protection using features such as a rated stand-off of 78 volts, bidirectional configuration, and a package weighing just 9.8 grams. The new 2700SM78CAN power bus voltage suppressor component provides 2,250 kilowatts of peak pulse power per line (typical = 8/20 microamps) and a peak … [Read more...]
Using Lightning to Test Power Grid Health
A Swedish researcher has developed a new method of employing lightning and other high voltage currents to benefit power companies. Normally considered disruptive to transmission lines and destructive to the power grid, these so-called natural transients could be used instead to monitor the wear and tear on power components. “We can use these high voltages to obtain more … [Read more...]
Risk of ESD-Sensitive Devices in Proximity to ANSI/ESD STM2.1-Compliant Garments by Field-Induced Model Discharge
Bob Vermillion CPP/Felow Certified, ESD Engineer-INARTE RMV Technology Group, LLC A NASA Industry Partner During ESD assessments, it is not uncommon to see personnel wearing wool, silk, cotton, polyester blends and static control overalls (ESD Garments). Some ESD garment types consist of an embedded conductive grid network (Figure 1) in combination with cotton or polyester … [Read more...]
EMC Practice – Measurement Under Interference
Clean transmission of signals from the EUT. Jorg Hacker Langer EMV-Technik GmbH It is uncommon to use an oscilloscope to monitor signals from the EUT when testing immunity to interference. The complicated environmental conditions in the anechoic chamber during RF irradiation or burst and ESD tests lead to measuring errors and unwanted interference in the EUT. Modifications to … [Read more...]
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