Tungsten carbide/aluminum composite particles inhibit galvanic corrosion of aluminum. An on-going issue in the design of reliable EMC shielding is galvanic corrosion of aluminum. How can an aluminum frame be protected from galvanic corrosion if it contacts an EMI gasket containing non-aluminum particles? Chromate conversion coatings have long been used to reduce the corrosion … [Read more...]
Shielding
- High Precision 3D-Laser Cutting Technology for RF Shield Modifications - Presented by Masach
- NextGen RF Shields 5G-Enabled, Online Catalog - Presented by Masach
- RF Shielding Tames RFI and EMI Emissions - Presented by Masach
- Making Repairs Possible with Two-Piece RF Shields - Presented by Masach
- Adding Mouse Holes To Standard RF Shield - Presented by Masach
On-site EMF Testing of an Emergency Network Communications Vehicle
Thorough testing requires taking measurements both inside and outside the vehicle. David A. Case, Jaime McLain and Murry Gavin Cisco Systems, Inc., Richland, Ohio, USA Experienced compliance test personnel are familiar with the usual spate of RF issues. Tasks range from performing MPE (maximum permissible exposure) studies and SAR (specific absorption rate) testing to … [Read more...]
PPM Becomes UK Distributors for Group 3 Technology, New Zealand
PPM Ltd has been appointed the exclusive UK Distributor for Group 3 Technology in New Zealand. These products allow a low cost point-to-point link for analog and digital information. A suite of software drivers for use with LabView, or other control software packages are also available, allowing users to drive and read back information with almost any type of transducer. This … [Read more...]
Shielding Effectiveness of Gaskets, Composites and Shields
There is an ever-increasing demand for lighter, stronger, easy-to-manufacture and cost-effective shielding solutions. Jack Prawica and Jereme Irwin DLS Electronic Systems, Inc., Wheeling, IL, USA As we move into the 21st century, there is a demand for stronger, lighter, less expensive, and environmentally friendly, RoHS-compliant* conductive materials. Many industry insiders … [Read more...]
Thermal and EMI Shielding Boost Design Reliability
Optimal shielding helps meet the challenges of cramming maximum functionality into minimal PCB space. Paul J. Stus Laird Technologies, St. Louis, MO, USA Advances in the miniaturization of electronic components has intensified the need for manufacturers to solve multiple problems simultaneously and earlier in the design process. Solving the issues quickly and early in … [Read more...]
Building a State-of-the-Art 5-Meter Chamber
An efficient shield room for automotive testing progresses from design to finished structure. Michael Koffink and Bob Mitchell Intertek Four years ago, we noticed a growing demand for EMC testing from the automotive industry. As cars and trucks now feature myriad on-board electronic devices, they are increasingly susceptible to stray emissions while simultaneously functioning … [Read more...]
Introduction to Composite Electromagnetic Noise Absorber Technology
Thin and flexible materials can provide simple and innovative solutions for hardware engineers Jung-Ju Suh, Ph.D. Electrical Markets Division, 3M Korea; Seoul, South Korea INTRODUCTION Electromagnetic interference issues can arise anywhere in electronic equipment with unpredictable and troublesome effects. These issues challenge hardware design engineers, and the … [Read more...]
Antenna Fundamentals
A proper understanding of antennas requires familiarity with electromagnetics, circuit theory, electronics and signal processing. Candace Suriano, Ph.D., Suriano Solutions John Suriano, Ph.D., Nidec Motors, Auburn Hills, MI, USA Tom Holmes, Agilent Technologies, Tipp City, OH, USA Qin Yu, Alcatel-Lucent, Columbus, OH, USA How does an antenna pick up a signal and convert it to … [Read more...]
Magnetic Shielding Basics
Growing complexity in electronics heightens the need for magnetic shielding. Richard Vance Ad-Vance Magnetics, Inc., Rochester, IN, USA Without magnetic shielding, much of today’s sophisticated electronic gear would be larger, less efficient, and in some magnetic environments, completely non-functional. Today’s complex components are extremely sensitive, and miniaturization … [Read more...]
Board-Level Multi-Cavity Shielding
Photo-chemical machining offers significant advantages over traditional methods of manufacture. Alan Warner TECAN Components Ltd., Weymouth, UK The ever-increasing demands on RF and microwave circuitry design and development teams to achieve EMC, eliminate crosstalk, save PCB real estate, decrease overall product size, provide access for rework and, last but not least, reduce … [Read more...]