Heilind Electronics is now stocking TE Connectivity's Quadrax D-Sub connector.TE's Quadrax D-Sub connector for military and commercial aerospace applications features a rugged metal shell construction and Gigabit Ethernet speeds with superior shielding performance. It is available in cable-to-cable and cable-to-board configurations and provides users with a sound solution for … [Read more...]
Antenna-to-Antenna Coupling On An Aircraft: Mitigation Techniques
The number of RF systems available for use in mission specific aircraft has grown dramatically over the last few decades, with numerous systems operating across very wide bandwidths (some covering almost the entire 1MHz to 40GHz range). Compatibility issues have become almost a certainty on all but the simplest of aircraft installations, and numerous mitigation techniques have … [Read more...]
CISPR 32: New International Standard on Electromagnetic Emissions from Multimedia Equipment
In late 2011, The International Standards Commission's (IEC's) Special Committee on Electromagnetic Interference (CISPR) passed a Final Draft International Standard (FDIS) which had been under development for a number of years. The FDIS was actually developed by CISPR's Subcommittee I - Electromagnetic Compatibility of Information Technology Equipment, Multimedia Equipment … [Read more...]
Christmas Music in the Chamber
How a sprinkler system brought radio noise to a chamber and the techniques used to find and remove it. Candace Suriano and John Suriano Auburn Hills, Michigan, USA Anechoic and semianechoic or ALSE (Absorber Lined Shielded Enclosure) chambers are supposed to prevent radio signals and other radiated noise in the environment from being detected inside the chamber. A chamber … [Read more...]
The HF Current Probe: Theory and Application
This article describes one of the most valuable tools in the EMC engineer's “bag of tricks” – the high-frequency current probe. Current probes are invaluable for measuring high-frequency common-mode (or “antenna”) currents flowing on wires or cables. Experience has proven that poorly terminated (bonded or filtered) cables are the no. 1 cause for radiated emissions failures at a … [Read more...]
The Urgent Need to Integrate EMC and Product Safety into Engineering Curriculum of Technical Universities
There is an evolution in the study of electromagnetic field effects on electrical and electronic products and systems. It is progressing from an engineering art to an engineering science. The complexity and sophistication of newer technology products has added to an increased need for more consideration of EMC and Product Safety issues. These factors have increased the … [Read more...]
Non-Lethal Weapon Projects Wave Beams
Senior members of the Marine Corps and members of the media were invited for a demonstration of the U.S. Department of Defense’s Joint Non-Lethal Weapons Directorate’s Active Denial System in mid-March. According to the U.S. Marine Corps, the new weapon is an “advanced non-lethal technology that projects a long range, man-sized beam of millimeter waves at a range of up to … [Read more...]
Company Collaborates with Danish Navy to Solve L Band Radar Interference Issue
Cobham Antenna Systems, makers of sensor and antenna systems, and in partnership with Seasat, “have successfully demonstrated its L band interference resistant Sea Tel 9797B and Sea Tel 4009M marine stabilized antenna systems” which are capable of operating in the “X band and Ku band radio frequency spectrum, respectively.” The antenna systems were purchased by the Danish … [Read more...]
Minerals Dispute Threatens Electronics Industry
The United States, European Union, and Japan have filed a case against the World Trade Organization, arguing that China’s export restrictions on rare earth minerals commonly used in electronics has become too strict. The 17 rare minerals are found in most electronics produced today, including “flat-screen televisions, smart phones, hybrid car batteries, wind turbines, … [Read more...]
New 0.8V/0.6µA Rail-to-Rail Operational Amplifiers
Touchstone Semiconductor, Inc. announced the newest members of its operational amplifier family: the TS1002 dual and TS1004 quad operational amplifiers.They are dual and quad single-supply, precision CMOS operational amplifiers fully specified to operate at 0.8V while consuming less than 0.6µA supply current per amplifier. They are designed to cut power requirements at least in … [Read more...]
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