A new family of electromagnetic interference, low-pass RC Pi filter arrays from OnChip comes with onboard diodes for electrostatic discharge (ESD) protection. These devices are crafted specifically for high-speed data LCD and memory card interfaces in mobile phones, PDAs, and MP3 players. The OC1425 is a 4-channel EMI filter while the EMF4020 and the OC1442 are 8-channel EMI … [Read more...]
Test System Available in 1- or 3-Phase Versions
The MIG1206-xP-T from EMC-Partner is an integrated CWG and 10/1700-µs telecom test system. It is available in 1- or 3-phase versions for enhanced level testing of telecom and power interfaces. The unit incorporates a 12-kV/6-kA combination wave together with a 6-kV 10/700-µs impulse along with an automatic CDN for AC or DC power supply applications. Typical standards requiring … [Read more...]
EPRI Launches Controversial Project of Updating NIEHS Booklet on EM Exposure
The Electric Power Research Institute (EPRI), a non-profit industry organization representing electric utility companies, has stirred controversy by launching a project that would fund an update and reissue of a booklet from the National Institute of Environmental Health Sciences (NIEHS), a branch of the National Institutes of Health. This booklet “Electric and Magnetic Fields … [Read more...]
Vishay Announces Acquisition of Specialty Capacitor Line
Vishay Intertechnology, a global provider of a wide line of electronic components, has announced the acquisition of a specialty wet tantalum capacitor line from KEMET Corporation for $35.2 and other consideration in the form of a three-year term loan of $15 million. Closing was scheduled to occur by the close of business on Monday, May 15, 2008. Dr. Felix Zandman, Executive … [Read more...]
German Metrology Institute Cites EMI Impact on Measurement Systems
The German Metrology Institute, or Physikalisch-Technische Bundesanstalt (PTB), has posted an article detailing the impact of electromagnetic interference on modern measurement systems. This article also includes an announcement of a portable device that it has developed to solve this problem. The gist of this article includes two well known facts. First, we no longer rely on … [Read more...]
Antenna Suite Targets HIRF Testing Applications
A suite of three high-gain, high-power microwave horn antennas from AR RF Microwave are intended for use in DO 160 HIRF (high intensity radiated frequency) testing. These antennas provide even more options for varying test conditions. The AT4444 provides 2 to 4 GHz/ 1000 watts CW / 17-kw pulse input power while the AT4446 provides 4 to 6 GH / 800 watts CW /15-kW pulse power. … [Read more...]
Empower RF Helps Prepare Broadcasters for February 2009 Analog TV Cutoff
FCC orders to cease analog television broadcasts have left the networks scrambling to ensure complete airwave coverage by the February 2009 cutoff date. The new broadcast type—digital TV, or DTV—promises to bring vastly superior picture, sound and channel selection to the airwaves free of charge. Companies like Empower RF have stepped up efforts to develop miniaturized DTV … [Read more...]
Antenna Mast Crafted for EMI/EMC Testing
The AM-400 from Com-Power Corporation is an antenna mast well suited to making EMC measurements in an OATS (open air test site) or in test chambers. The height of the antenna can be varied from one to four meters during measurement as required by commercial EMC specifications. The mast is constructed using fiberglass tubes and grating material. These were chosen because they … [Read more...]
Portable, Folding Biconical Antenna Performs Site Attenuation Measurements
The SAS-542 Folding Biconical Antenna from A.H. Systems was the first EMC antenna designed for portable compliance testing applications. Product features include a frequency range of 20 MHz to 330 MHz, maximum continuous power of 1 watt, impedance of 50 Ω, and a maximum radiated field of 2 V/m. These antennas are individually calibrated (1-, 3- and 10-meter calibration … [Read more...]
High End Log Periodic Broadband EMC Antenna for 380 MHz to 18 GHz
The HyperLOG™ Series 3000 from German EMC firm Aaronia AG is based on an ultra-thin, gold-plated, high tech TEFLON substrate. This innovative construction makes an extended frequency range possible. This extended frequency range now goes down to 389 MHz allowing use in the increasingly important TETRA band (380 MHz +). Additionally, the frequency range up to 18 GHz allows … [Read more...]
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