Master Bond, Inc. has released MB600G, an aqueous-based, sodium silicate system with graphite filler well suited for EMI/RFI shielding applications. Graphite-filled materials are widely used for shielding and static dissipation applications because of the balance of shielding effectiveness and cost. Shielding effectiveness is most often measured by attenuation. It is defined … [Read more...]
IEC 61196-1-111:2014 – Coaxial Communication Cables – Part 1-111: Electrical Test Methods – Stability of Phase Test Methods
The International Electrotechnical Commission (IEC) has published IEC 61196-1-111:2014, “Coaxial Communication Cables - Part 1-111: Electrical Test Methods - Stability of Phase Test Methods.” The new standard is available in the IEC’s webstore here. "IEC 61196-1-111:2014 applies to coaxial communication cables. It specifies methods for determining the stability of phase of … [Read more...]
Digital Phase Shifter USB RF Modules for Economical Configurable RF Test Measurements
Saelig Company, Inc. is now offering Telemakus’ TEP2000-4and TEP4000-5 digital phase shifters for applications including testing of phased array antennas and other RF equipment. These laboratory-quality phase shifters feature minimum phase range of 360 degrees (400 degrees typical) with 12-bit, 0.25 degree resolution. The TEP2000-4 operates over the bandwidth of 1 to 2 GHz, … [Read more...]
Tunable Nanoantennas Made More Customizable than Ever Before
Researchers at the University of Illinois at Urbana-Champaign have developed a new kind of tunable nanoantenna that could point towards novel plasmonic-based optomechanical systems that use plasmonic field enhancement to instantiate mechanical motion. The research, led by Kimani Toussaint, Ph.D., associate professor of mechanical science and engineering at the University of … [Read more...]
New Hyperbolic Metamaterial Lets Light Out, Not In
Researchers at the National Institute for Standards and Technology (NIST) have developed a new metamaterial made of silver, glass, and chromium that allows for the one-way transmission of visible light. Metamaterials are artificial materials engineered, combined and structured, often in patterns, to achieve certain properties. Among other functions, certain metamaterials can … [Read more...]
Researchers Boost Connectivity of Musical Wi-Fi Gloves
Scientists from the University of Bristol and the University of the West of England (UWE Bristol) have improved the performance of a pair of musical Wi-Fi gloves worn by popstar Imogen Heap. Used during Heap’s experimental live music performances to control both music and visuals with a series of gestures, the so-called Mi.Mu glove system must be robust enough to cope with … [Read more...]
Research on Radio Wave Behavior May Improve Multipath Interference Mitigation
New research on how radio waves interact and exchange energy could lead to the development of more precise indoor location systems. Like all electromagnetic waves, radio waves propagate at the speed of light, carrying a balance of electric and magnetic energy. The ratio between the magnitudes of the electric and magnetic fields is a physical constant known as the impedance of … [Read more...]
Avoid the Most Common Failures with These 7 Essential EMC Design Rules
A reader recently asked me what the top design rules were that they could implement on their product to maximize the chances of passing FCC and CE testing. There’s no doubt that there are countless ways to fail emissions and immunity tests, but a pattern of failure modes did emerge at my EMC lab.Regardless of the type of product I was testing, be it medical, industrial, … [Read more...]
Beam-Switching Antenna Compensates for Aircraft Movement
A software-defined, electronically-reconfigurable antenna technology developed by researchers at the Georgia Institute of Technology has now been tested on land, in the air and on the ocean. U.S. Department of Defense representatives attended an event earlier this year in which the capabilities of Georgia Tech’s Agile Aperture Antenna (A3), which can change beam directions in … [Read more...]
RF Rotary Joints Prevent Cable Entanglement During Antenna Testing
Microwave and RF product supplier Fairview Microwave has released a new line of single channel/single-axis and single-channel/multi-axis RF rotary joints. Fairview’s RF rotary joints are designed to be used wherever RF signals have to be transmitted between stationary and moving parts of a system, including commercial and military radar, land-mobile radio communications and … [Read more...]
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